Kimi to Boku. - MangaDex

Shun, Kaname, and the twins Yuuki and Yuuta have been friends since kindergarten. It's a little hard to tell if they actually get along or not - but even as high-school students, they hang out together. Recently, they've had a new addition; a half-Japanese transfer student Chizuru, who has started to liven up the group. This manga is really just about their daily lives, which aren't particularly passionate or exciting. A tranquil and sometimes comedic story of youthful friendship…

Anime/manga — Kimi to Boku Vol. 16 Omake part 2

1 Chapter 1 - Kouun na Kimi to Boku no Mirai - MangaDex

Yuri!!! on Ice - Kimi wa Boku no Hikari (Doujinshi) - MangaDex

Boku to Kimi wa - MangaDex

Kimi no Okaasan wo Boku ni Kudasai! - MangaDex

Kimi to Boku no Kankei - MangaDex

Kimi to Boku. - MangaDex

1 Chapter 1 - Kimi to Boku to Sekai no Hotori - Futari Bocchi Christmas - MangaDex

Konya, Kimi wa Boku no Mono ni Naru - MangaDex

Anime/manga — Kimi to Boku Vol. 16 Omake part 2