Anime that is 25 episodes or less?

[SuzuiChan]

Charlotte
While on the surface Yuu Otosaka appears to be just another charming and intelligent teenager, he has a secret—he has the ability to slip into people's minds and fully control their body for five seconds at a time. Yuu has been using this skill for years to gain the highest grades, which allowed him to enter a prestigious high school.

When the enigmatic Nao Tomori catches Yuu using his power, she coerces him and his sister Ayumi into transferring to Hoshinoumi Academy, a school for students with supernatural abilities. The student council of the school, led by Nao, is tasked with secretly tracking down adolescents who abuse their powers. Yuu is forced to join the student council and together, they face formidable challenges that bring him closer to the shocking truth that his own, seemingly incomplete ability, might be more powerful than he could have ever imagined.

An original story from Jun Maeda, creator of Angel Beats and Clannad, Charlotte explores the supernatural lives of these teenagers and the price they must pay for being special. (MyAnimelist)
 

[SuzuiChan]

Dance in the vampire bund
On live television, Mina Tepes, the ruler of all vampires, reveals the existence of her species to the world and states her plan to build a sanctuary in Japan for vampires, called the Vampire Bund. Using her family's wealth to pay off the nation's debt, they have agreed to let her build this safe-haven for her fellow creatures of the night. But not everyone is so easily swayed by Mina's influence, as her announcement brings about conflict with humans who believe that the queen's quest for peace is a façade.

Akira Kaburagi does not believe in vampires and gets uneasy whenever they are brought up, although he has yet to realize why. Apart from suffering a head injury a year ago, he lives on blissfully until he meets Mina. She triggers within him memories of a life he had long forgotten, and he soon begins protecting her without understanding why. But Akira's secret is far stranger than he could have ever thought possible—he discovers that he is a werewolf, sworn from birth to protect the vampire queen, even if it costs him his life. Now, as these two dance a rondo of death in the Vampire Bund, Mina and Akira find out just how deep their bond goes. (MyAnimelist)
 

[SuzuiChan]

Interviews with monster girls
High school biology teacher Tetsuo Takahashi may look like your average everyday instructor, but beneath his gentle appearance lies something less ordinary: his fascination for the "Ajin," more commonly known as "Demi." Although these half-human, half-monster beings have integrated into human society, Takahashi believes that much about them will remain unknown unless he interacts with them firsthand.

Demi-chan wa Kataritai follows Takahashi's daily life in Shibasaki High School together with his three Demi students—Hikari Takanashi, an energetic vampire; Kyouko Machi, a gentle dullahan; and Yuki Kusakabe, the shy snow woman. Along the way, Takahashi also meets fellow teacher Sakie Satou, a succubus with an aversion towards men. To fulfill his goal of learning more about the Demi, Takahashi decides to conduct casual interviews with the girls to learn more about their abilities, psyche, and interaction with human society. As Takahashi strengthens his bond with his students, he soon discovers that the Demi are not as unusual as he initially believed. (MyAnimelist)
 

[SuzuiChan]

Eromanga sensei
One year ago, Sagiri Izumi became step-siblings with Masamune Izumi. But the sudden death of their parents tears their new family apart, resulting in Sagiri becoming a shut-in which cut her off from her brother and society.

While caring for what's left of his family, Masamune earns a living as a published light novel author with one small problem: he's never actually met his acclaimed illustrator, Eromanga-sensei, infamous for drawing the most lewd erotica. Through an embarrassing chain of events, he learns that his very own little sister was his partner the whole time!

As new characters and challenges appear, Masamune and Sagiri must now face the light novel industry together. Eromanga-Sensei follows the development of their relationship and their struggle to become successful; and as Sagiri slowly grows out of her shell, just how long will she be able to hide her true persona from the rest of the world?
 

[SuzuiChan]

Gakusen toshi asterisk
Long, long ago, an epic catastrophe, known as Invertia, caused a complete change in the world's power balance. In the years following this disaster, a group known as the Integrated Enterprise Foundation rose to power. In addition to this massive change, a new breed of humans born with amazing physical skills known as Genestella also emerged and joined the ranks of humanity.

Gakusen Toshi Asterisk follows the story of Ayato Amagiri, a student who has just transferred into one of the six most elite schools for Genestella students in the world—Seidoukan Academy—where students learn to control their powers and duel against each other in entertainment battles known as festas. Unfortunately, Ayato gets off to a rough start. When trying to return a lost handkerchief to a female classmate, he accidentally sees her changing which leads to her challenging him to a duel. What most people don't realize however, is that Ayato has no real interest in festas and instead has an alternative motive for joining this prestigious school. What is Ayato's big secret? Will he be able to keep up his act when surrounded by some of the greatest Genestella in the world?(my animelist)
 

[SuzuiChan]

Gingitsune
Gintarou is a fox spirit that has been protecting the small Inari temple since the Edo era. Saeki Makoto's family possesses the power to see the gods' agent, but the ability is limited to one living relative at a time. When Makoto's mother passed away while she was still young, Makoto inherited the ability as the sole remaining family member. With the help of fox spirit's power, Makoto and Gintarou help the people of their community, in spite of their many differences.(MyAnimelist)
 

[SuzuiChan]

Himouto Umaru-chan
People are not always who they appear to be, as is the case with Umaru Doma, the perfect high school girl—that is, until she gets home! Once the front door closes, the real fun begins. When she dons her hamster hoodie, she transforms from a refined, over-achieving student into a lazy, junk food-eating otaku, leaving all the housework to her responsible older brother Taihei. Whether she's hanging out with her friends Nana Ebina and Kirie Motoba, or competing with her self-proclaimed "rival" Sylphinford Tachibana, Umaru knows how to kick back and have some fun!

Himouto! Umaru-chan is a cute story that follows the daily adventures of Umaru and Taihei, as they take care of—and put up with—each other the best they can, as well as the unbreakable bonds between friends and siblings.(My animelist)
 

[SuzuiChan]

Inari konkon
Clumsy, below average intellect, and shy – these are some of the traits that Inari Fushimi possesses. Despite her shortcomings, she is very considerate of others. She can't ignore anyone's plea for help! She also has a long time crush on Kouji Tanbabashi, who she admires for being cheerful and always hardworking. The problem is, Inari's incurable shyness makes it difficult to express her feelings for Kouji.

Inari, Konkon, Koi Iroha starts with Inari taking a shortcut to her school. She happens to see a fox pup that's about to fall in the river. Although she's running late, she just can't ignore the pup. Uka-no-Mitama-no-Kami, the god of the Inari Shrine, is thankful for Inari's kindness toward the young fox, who turns out to be a familiar named Kon. To show her gratitude to Inari, she fulfills one of Inari's wishes, but the fulfillment of the wish only invites trouble. To compensate, Uka-no-Mitama-no-Kami bestows Inari a small part of her divine power that gives Inari the ability to transform into anyone at will.

Inari now possesses a power of a god, even if it's just a small portion. Otherworldly beings suddenly take an interest in her, for better or worse. What kind of adventure awaits Inari, and will she be able to tell Kouji everything that she has kept in her heart for so long? (Myanimelist)
 

[SuzuiChan]

miss kobayashi's dragon maid
As Kobayashi sets off for another day at work, she opens her apartment door only to be met by an unusually frightening sight—the head of a dragon, staring at her from across the balcony. The dragon immediately transforms into a cute, busty, and energetic young girl dressed in a maid outfit, introducing herself as Tooru.

It turns out that the stoic programmer had come across the dragon the previous night on a drunken excursion to the mountains, and since the mythical beast had nowhere else to go, she had offered the creature a place to stay in her home. Thus, Tooru had arrived to cash in on the offer, ready to repay her savior's kindness by working as her personal maidservant. Though deeply regretful of her words and hesitant to follow through on her promise, a mix of guilt and Tooru's incredible dragon abilities convinces Kobayashi to take the girl in.

Despite being extremely efficient at her job, the maid's unorthodox methods of housekeeping often end up horrifying Kobayashi and at times bring more trouble than help. Furthermore, the circumstances behind the dragon's arrival on Earth seem to be much more complicated than at first glance, as Tooru bears some heavy emotions and painful memories. To top it all off, Tooru's presence ends up attracting several other mythical beings to her new home, bringing in a host of eccentric personalities. Although Kobayashi makes her best effort to handle the crazy situation that she has found herself in, nothing has prepared her for this new life with a dragon maid.
 

[SuzuiChan]

Konosuba
After dying a laughable and pathetic death on his way back from buying a game, high school student and recluse Kazuma Satou finds himself sitting before a beautiful but obnoxious goddess named Aqua. She provides the NEET with two options: continue on to heaven or reincarnate in every gamer's dream—a real fantasy world! Choosing to start a new life, Kazuma is quickly tasked with defeating a Demon King who is terrorizing villages. But before he goes, he can choose one item of any kind to aid him in his quest, and the future hero selects Aqua. But Kazuma has made a grave mistake—Aqua is completely useless!

Unfortunately, their troubles don't end here; it turns out that living in such a world is far different from how it plays out in a game. Instead of going on a thrilling adventure, the duo must first work to pay for their living expenses. Indeed, their misfortunes have only just begun! (Myanimelist)
 

[SuzuiChan]

Konohana Kitan
In a bustling village of spirits, Yuzu, a cheerful fox girl, starts her first job as an attendant at the traditional hot springs inn Konohanatei. Though Yuzu has no experience working at such a high-class establishment, Kiri, the affable and reliable head attendant, immediately puts her to work learning the basics.

While Yuzu's eagerness initially proves to be more of a hindrance than a blessing, her playful nature brings a unique charm to the inn, as both customers and her fellow workers quickly warm up to her clumsy yet well-meaning mistakes. Under the guidance of the other foxes—the rigid Satsuki, the carefree Natsume, the critical Ren, and the quiet Sakura—Yuzu steadily learns the trade of an inn attendant while learning to love the magical world surrounding her.

Konohana Kitan presents the heartwarming tale of a simple fox girl forging bonds with others and finding a home amidst the mysterious, beautiful world of spirits.
(my animelist)
 

[SuzuiChan]

Koufuku graffiti
The path to becoming a fine wife begins with being an accomplished cook—at least, that is what Ryou Machiko's late grandmother had led her to believe. For a middle schooler, Ryou's cooking skills are incomparable; but recently, though Ryou's food looks appetizing and smells inviting, the taste has not been delicious. Just when the dejected art student comes to terms with the possibility that she might continue living alone for the rest of her life, her aunt tells her that Kirin Morino—Ryou's second cousin—will begin staying with her every weekend since the younger girl has joined a cram school in Tokyo and aims to attend the same school as Ryou.

Surprisingly, with her cousin's arrival, Ryou finds that her cooking has vastly improved—apparently, it is not her prowess in the kitchen, but the sharing of the experience with those closest to her that seems to make the flavors shine.
 

[SuzuiChan]

Paprika
The world of dreams can be an incredible window into the psyche, showing one's deepest desires, aspirations, and repressed memories. One hopeful tech lab has been developing the "DC Mini," a device with the power to delve into the dreams of others. Atsuko Chiba and Kosaku Tokita have been tirelessly working to develop this technology with the hopes of using it to deeply explore patients' minds and help cure them of their psychological disorders.

However, having access to the deepest corners of a person's mind comes with a tremendous responsibility. In the wrong hands, the DC Mini could be used as a form of psychological terrorism and cause mental breakdowns in the minds of targets. When this technology is stolen and people around them start acting strangely, Atsuko and Kosaku know they have a serious problem on their hands. Enlisting the help of Officer Konakawa, who has been receiving this experimental therapy, they search both the real and dream worlds for their mental terrorist.(MyAnimelist)
 

[SuzuiChan]

Rakuen Tsuihou
In a future where a massive disaster has devastated Earth, most of humanity has abandoned their physical bodies and relocated in digital form to DEVA, an advanced space station orbiting the ravaged planet. Free from the limitations of traditional existence, such as death and hunger, the inhabitants of this virtual reality reside in relative peace until Frontier Setter, a skilled hacker, infiltrates the system and spreads subversive messages to the populace.

Labeled a threat to security by authorities, Frontier Setter is pursued by Angela Balzac, a dedicated member of DEVA's law enforcement. When the hacker's signal is traced to Earth, Angela takes on physical form, transferring her consciousness to a clone body and traveling to the world below in order to deal with the menace. On Earth, she is assisted by Dingo, a charismatic agent, and during her journey to uncover the mystery behind Frontier Setter, she gradually discovers startling realities about the wasteland some of humanity still refers to as home, as well as the paradise above.
(my animelist)
 

[Extreme Cuddler]

Mob Psycho 100 (season 1 has 12, season 2 is on going) Middle school boy with psychic powers trying to live a normal life and avoid using his powers
same creator as one punch man
That time I got reincarnated as a slime (21 episodes so far still on going) middle age man dies, gets reincarnated as a slime in a fantasy world
Overlord (12 episodes each season, has 3 seasons) stuck in a video game, main character slowly looses humanity and starts becoming more like his undead character
Osomatsu-san (2 seasons each one has 12 episodes) comedy about neet sextuplets