Senagaki Isaku will be a first year high school student starting in spring. Her grandfather is the third head of the Senagaki group, a yakuza organization, so she is feared by those around her. However, starting from spring, she hopes to make normal friends and normally fall in love. She is admitted into a high school further from her hometown, however, the overprotective young head of the Senagaki group, Utou Keiya, (26 years old) falsifies his age and enters the school with her through a backdoor admission…?! Keiya proclaims that love is too early for her although Isaku is perfectly ready. In truth, she has held an unrequited love for Keiya for quite some time.

Various romance one-shots. 1. Mainichi Kiss shite ii desu ka? ~Kaki Oroshi Bangai-hen~ (Hatsuharu) 2. 16-sai, Oomi no Natsu (Anmitsu) 3. Isumi-senpai wa Amakunai (Rukana) 4. Daisuki Sugite Gomennasai! (Fuuko Yui) 5. Datte Kimi to Kiss shitai (Aoi Suzumine) 6. Kimi to Hajimari no Kiss (Hana Ayana)

Kurumi lives under one roof with her father and her overprotective brother, Ataka. One day, she reunites with Nagio, her childhood friend. Now a young man, Nagio doesn’t hesitate making advances—much to Kurumi’s dismay—kissing her out of nowhere and telling her how he has always liked her, in the process totally wrapping her around his finger. And while Kurumi is put off at first, she eventually finds herself head-over-heels for Nagio … This childhood-friend romance starring a black-hearted-yet-loving (?) boy is filled with sweet and passionate kisses!

Falling in love with a painting while at a school's festival, Iku is able to meet the gentle high schooler who created it. She falls in love at first sight and with that feeling in her heart, decides to enroll in that high school! But, what happens when she joins the art club and discovers her gentle prince has disappeared and a sleazeball has taken his place?!

"It's not good if you're not here". The early spring. Frustrating and painfully childhood friend love story begins. Nayu and Oumi are childhood friends. Without realizing it, Nayu finds she has fallen for Oumi over the years. However, just as she comes to terms with her feelings, Oumi reveals himself to be in love with the pretty Tsuzuki-san in his class. How will Nayu deal with such heartbreak?