I'm a fan for Comedy/Romance Animes and I know some that only has 26 or 24 episodes
These are the only animes that I know: (the summaries are pretty short)
1. Kaichou Wa Maid Sama! (The Student Council President is a Maid!) (24 episodes)
Summary:
Ayuzawa Misaki has a secret: she is working part-time at a Maid Restaurant. But she couldn't tell that to the school because she's the class president in Seika Academy. Misaki's image in the school is that all the boys are scared of her and Misaki likes only the girls. Misaki hates boys because her father left them when they were just a little kid. But later on, Usui Takumi knew her secret. And by that, will Usui tell her secret to the school??
2. Special A (26 episodes)
Summary:
Hikari, when she was little, was taught by her father some wrestling techniques, and when a boy named Kei challenged her, Hikari was defeated. Hikari was pretty angry because nobody defeated her in any challenges but Kei. And when Hikari got older, she selfishly asked her father to enroll her to Kei's school just to beat him. But the truth is, Kei has some feelings for Hikari...
3. Fruits Basket (26 episodes)
Summary:
When high school student Tohru Honda's mother died in a car accident, Tohru begins living in a tent and supporting herself. That is, until she finds a home in the least likely of places, inhabited by her classmate Yuki Sohma and his cousins Shigure and Kyo. The Sohmas however, live with a curse. Thirteen members of the family are possessed by spirits of the Chinese zodiac and turn into their zodiac animal when hugged by the opposite gender, are weak, or when under stress. When Tohru discovers the Sohmas' secret, she promises not to tell and is allowed to keep living with them. The Sohma's curse, however, is deeper and darker than Tohru realized, but her presence soon becomes a large, positive influence on those possessed by the zodiac. She sets out to break the curse, and on the way, meets and discovers each of the Sohma's vengeful zodiac spirits. Each has a different personality, just like the animals in the Chinese Zodiac. Tohru's existence changes the Sohma clan's lives forever...
4. Ouran High School Host Club (26 episodes)
Summary:
Haruhi Fujioka is a scholar student at the prestigious Ouran Academy, a fictional high school located in Bunkyō, Tokyo. Looking for a quiet place to study, Haruhi stumbles upon the Third Music Room, a place where the Ouran Academy Host Club, a group of six male students, gathers to entertain female "clients". During their first meeting, Haruhi accidentally knocks over and breaks an antique vase valued at ¥8,000,000 (US$80,000 in the U.S. English manga)[1] and is told to repay the cost in service to the club. Haruhi's short hair, slouching attire and gender-ambiguous look cause her to be mistaken by the hosts for a male student. The hosts all agree that Haruhi would be a good host, thus making her join the host club. Ultimately she agrees to join the Club as a host herself (dressed as a male) in order to pay off her debt.[2] She agrees to join since she does not mind hosting as long as she can pay the debt off faster. The hosts do later find out that she is, in fact, a girl. They keep this a secret, so no one will be able to tell. The Ouran Private Academy encompasses kindergarten to twelfth grade (along with a university as well). Most students come from wealthy families, but in special cases, merit scholarships are granted to exceptional students from a lower income bracket. The school's unofficial motto is "Lineage counts first, wealth a close second," meaning students with stellar family backgrounds but low socioeconomic status may be given top priority over those from rich families with lesser pedigrees.