The three sisters became marriage candidates for the young master of the Ryunomiya family due to an anachronistic promise between their parents. Her youngest son, Sango, has won the bride of her dreams, but is confused by the unfamiliar daily routine. I want to be worthy of that person... Take a look at the fairy tale of love between single-minded maidens.

"MSAC” is a rare and bizarre disease that is said to develop when feelings of affection, vindictiveness, or regret for a particular person swell up. There are a variety of symptoms, and no fixed cure has been established. One day, one of the new part-timers at work, Io, confesses his love to Mitsuri, who is gay and has a male love interest. Io is an excellent boy with a good memory, but he has a certain aloofness that prevents him from grasping his true feelings. Although he suspects that Mitsuri is making fun of him, he gradually becomes aware of him. Mitsuri's messed up feelings overflow into a disease called “MSAC”..!

Kusakabe is the class chairman and the captain of the kendo club. Takamatsu is popular with the girls, but is shunned by the boys, and is out of place in class. One day, Takamatsu discovers that the popular class chairman is actually a secret masochist. Takamatsu is not only attracted to him, but also gets excited when he sees him in his most unguarded state. He even offers to help him masturbate, because he knows there are limits to what he can do on his own...!

https://www.cmoa.jp/title/300793/

https://www.cmoa.jp/title/300794/

https://www.cmoa.jp/title/338992/