A mysterious boy comes to Saku Fujigaya’s rescue when she falls ill on a train, but he leaves before she can thank him. After this experience, Saku never ignores strangers in need of help to emulate the boy who helped her. Saku Fujigaya would like to thank the boy who helped her, but all she has is a note signed “Ryosuke Sakura.” She discovers that a boy at her high school, Haruki Sakura, has an older brother named Ryosuke. She asks Haruki to deliver her thank-you letter to Ryosuke, but why does he refuse?

A mysterious boy comes to Saku Fujigaya’s rescue when she falls ill on a train, but he leaves before she can thank him. After this experience, Saku never ignores strangers in need of help to emulate the boy who helped her. Saku has her long-awaited meeting with Ryosuke, only to discover he wasn’t the person who helped her. Learning that her feelings for him were based on a misunderstanding comes as a shock. Saku finds herself drawn to Haruki, who has been supporting her all along, but how can she take the next step when she isn’t even sure what love is anymore?

Now that Saku realizes she’s in love with Haruki, she finds her heart racing for a new reason every day—until Haruki and Kotono start pretending to be a couple to protect Kotono from her ex-boyfriend. Then the blunt-speaking Iryu gets involved in Saku’s life, causing even more trouble!

琴乃も陽希のことが好きかもしれないと知り、動揺する咲。冷たい物言いの裏で、泣いているところを抱きしめて隠してくれた井竜の意外な優しさに触れた咲は、少しずつ心を許しはじめ…!? キュンとして泣きたくなるリアル青春グラフィティ！

琴乃に自分の気持ちを話して誤解を解き、改めて陽希への想いを強くした咲。だけど井竜が自分を救ってくれた神様かもしれないと分かり、3人の関係性は大きく変化して…!? 過去と現在が交わり、三角関係が加速する──！ 【収録作品】乙女のいたり

井竜（いりゅう）に過去に出会っていたことを思い出した咲（さく）。ふたりのキョリは確実に縮まり、井竜の中には新たな気持ちが芽生え始め…？　いっぽう陽希（はるき）と文化祭で一緒に回る約束をした咲は、期待に胸をふくらませるが…!?　各界で話題沸騰の青春ラブストーリー、興奮の文化祭編！

幼馴染・葉月（はづき）に対する陽希（はるき）の態度が気になって仕方ない咲（さく）。ふたりでプラネタリウムを見て良い雰囲気になるも、陽希の心には葉月がまだいるのではと不安な咲は逃げ出してしまい…。いっぽう咲への気持ちを確信した井竜（いりゅう）は、大胆な行動に出て…!?　思いすれ違い、流れゆく珠玉の青春ラブストーリー！