In the story, Kōya Asumi is a fourth-year college student who works as a housekeeper. Kōya starts working for single father Keiichi Naruse, and a relationship develops between the two.
Shion and Rui are the dream team when it comes to hitting on women. Tonight was going to be another night of hooking up with girls for Shion, but he ended up taking a strange drug. When he woke up... he'd turned into a girl?! Rui came looking for Shion, but didn't recognize him, and started hitting on him...
Koichi, a student about to graduate, is summoned to a world of Titans. It's the land of Tildant, where the prince, Caius, appears in front of Koichi and says, "I want you to be my bride and give birth to my baby!"
First-year Toono transfers from Tokyo to the all-boys boarding school deep in the mountains, "Mori Moori Private School." The friendly Yaguchi who calls out to him becomes his only friend, but his dislike of sports makes him join the most laid-back looking photography club instead of Yaguchi's soccer club. However, the photography club is in name only and is actually nicknamed the "Yarichin Bitch Club," filled with colorful seniors. In contrast to the troubled Toono, Kajima, who joined the club at the same time, is completely unphased and even slips a confession to Toono into the confusion. Toono himself thinks Yaguchi is cute, but Yaguchi finds himself blushing around Kajima and stuff happens. Furthermore, complications arise between the seniors…
Izumi was born in a family of celebrities. His father is a singer, his mother an artist, his older brother the lead vocalist for the popular band CRUSHERZ. Izumi himself, however, is just a nerdy college student. He loves the manga "Magical Girl Lala Lulu" and dreams of becoming a manga writer himself. One day he is roped into filming a commercial where he wears a dress. Another actor on the set, Ryōma Ichijō, mistakes him for a woman and falls in love at first sight. As it turns out, though, they met ten years in the past. And Ryōma's feelings don't change when he finds out Izumi is a boy.
While spending summer with his mother, Haru meets Ren, a boy newly adopted by his mother. Getting along with Ren isn't easy as Haru's goal is to "civilize" him by the time summer ends. Their relationship slowly improves as Haru spends more time with Ren and in return Ren steadily warms up to him. Can they really become a "family" at the end of summer?!
Three couples, three intense romances: a student’s tutor crosses the line, a loner meets a force of nature, and a carefree man faces love he can’t ignore.