Based on Mitsuba and Ichijinsha's 30-sai no Hoken Taiiku (Health and Physical Education for 30-Year-Olds) guidebook. The guide is aimed at men in their 30s who have not experienced romance or sex with women yet. Imagawa Hayao is a 30-year-old virgin bachelor. One day, a cupid descends from heaven with the express purpose of forcing him to graduate from virginity. Thus unfolds a pure love story between a 30-year-old bachelor and a 30-year-old bachelorette. (Source: AniDB)

Mizuho can't believe his ears when Grandpa's will is read out. Grandpa's final wish is for Mizuho to attend the same academy as Mizuho's mother. The catch is it's an all-girls school. With the help of friend Mariya however, he gets a makeover good enough to fool everyone at the academy. (Source: ANN)

Tragically perishing from overwork, a young Japanese woman is reborn as Dahliya Rossetti, daughter of a newly entitled baron. Her father, Carlo, is a beloved magic artificer, a maker of magical tools. Inspired by him, Dahliya uses her memories from her previous life to create practical inventions and become a magic artificer like Carlo. A few years later, the now adult Dahliya has made a name for herself and has gotten engaged to her father's apprentice. However, her life takes a turn for the worse when Carlo suddenly passes away and her fiancé leaves her for another woman not long after. Although having to fend for herself, Dahliya is not quite ready to give up on her dream of becoming a master artificer yet. She may be a single woman but, with the help from old and new allies, she is prepared to overcome any obstacle in her way.

One day, class 3-E of Kunugigaoka Magic School receives a special mission: to kill their homeroom teacher, the Demon King Koro-sensei. To increase their chances of succeeding, the class searches for the three most powerful warriors—Karma Akabane, Itona Horibe, and Ritsu—who later join their company. Even with their help, accomplishing the mission becomes an insurmountable task as they are not the only ones after the Demon King's life. Koro-sensei Quest! tells the comedic adventures of Nagisa Shiota and class 3-E as chibi magical students. Trained by none other than their very target, the students encounter challenging, yet hilarious situations all through the perilous mission of defeating the Demon King.