Rainbow Days

Bundled with the 13th limited-edition volume of the manga.

Makoto Ito is a young Japanese high school student beginning his second term at the fictional Sakakino Academy. During his daily train rides to and from school, he becomes infatuated with fellow student Kotonoha Katsura; a girl that also commutes. When a new classmate acquaintance of his, Sekai Saionji, discovers his secret crush on Kotonoha, she helps introduce both of them to each other and over time they grow closer and agree to date. However in spite of her proud and triumphant matchmaking efforts, Sekai inadvertently becomes jealous of the new couple, having also developed feelings toward Makoto. The following afternoon on her way home at the nearby train station in front of the school, Sekai finds Makoto waiting for Kotonoha to rendezvous for a date. He sits with her and reiterates his appreciation for her help, and feeling heavily indebted, offers repayment anyway he can. Though she believes he is overreacting, Sekai decides to redeem her obligation by placing a kiss on his lips as her train pulls in; quickly rushing into an open passenger car and happily bidding a dumbstruck Makoto luck on his date.

Kamikura Hiroki is an art student at the local school Nadesico Academy (High School and college level) whom intends to be an art teacher in the future. He is also the advisor to the high school arts society where his cousin, Housen Elis, attends. While Elis is a painter like Hiroki, Hiroki seems to have given up on his dreams and no longer paints. There appears to be some mysterious trauma in the both of their pasts which may have changed them. Meanwhile, the high school hires a new PE teacher, Kikyo Kiri. On the first day, she bumps into Hiroki and is stunned. Here is the boy she confessed to and he refused her...

School life -- it's an experience that everyone should have, and no one should take for granted. Of course, everyone knows that the most enviable way to spend high school is as the most popular person in class. Transfer student Urata has decided that his high school debut will be brilliant, and as he reaches nervously for the door -- it happens. In his way stand fellow high school students Shima, Sakata, and Senra! Are they enemies? Allies? Or something else entirely?!