A oneshot uploaded to twitter by Nishizawa 5Miri.

Story of an onee-chan who doesn't act her age x a careless young boy who is easily swayed by her. Chapter 4 & 5 are not part of the main storyline.

A compilation book about four romance stories by Nishizawa 5miri. 1. Doutei Mangaka vs Cosplayer 2. Hatsukoi no Neechan to Koukou de Saikai 3. Renai Taishou ni Miraretai 4. 65-nen wo Kimi to 5. Garigari-kun to Osananajimi Pocchari Oneechan 6. Jibun no Miryoku ni Mutonchaku 7. Hajimete no Hito ni Naritakatta 8. Senpai to no Natsu 9. Senpai to no Takunomi Communication 10. Fumajime Senpai to Majime Kouhai-kun no Kousai Shiyou Kou Shiyou 11. Uwaki no Line

A girl who works on a coffee shop encounters her ex-girl friend, and the rumor of she being a lesbian spreads. Then, she meets with an homophobic person.

Wanting to see a naked girl in person, Tsuda Kouta attends a nude model sketching session where he was awakened to the arts. There, he also meets our heroine who speaks in Kansai dialect and a pure, sugar-sweet love begins to unfold. 1. Onna no Hadaka wo Nama de Mitai 2. Kareshi ga Iru Onnanoko to Tsukiau Houhou 3. Konna Toki no Tame ni 4. Kore Dakara Kawaii Onna wa 5. Anata no Chinchin Kashite Kudasai

Yoshioka, a high schooler, has fallen in love with a woman nine years older than him! How will this age gap romance play out? "Tonight's the night! I'm going to confess to Mikami-san!"