Ichihara Chiaki is a member of the archery club who is a huge breasts fanatic. Having the need to fondle breasts lest her performances suffer from the withdrawal, Chiaki befriends Harumi Hana who meets with her in a clubroom every day after school.
Sekai de Ichiban Oppai ga Suki! (or I Like OPPAI Best In The World! was written and illustrated by Konbu Wakame and was published under MediaFactory in July 27, 2017.
This manga provides examples of:
- Bifauxnen: Chiaki, to the point that she had several female admirers.
- Only Sane Woman: Harumi puts up with Chiaki's behavior daily.
- Ecchi: Breast-related humor.
- Out-of-Character Moment: After some circumstances result in Harumi's friend groping her chest, Chiaki is enraged to the point that she doesn't caress Harumi as she normally does. Even when Harumi forces her to, she puts little enthusiasm into it.
- Tsundere: Harumi slowly comes to realize that she liked Chiaki, but to what extent she was uncertain.
- World of Buxom: Many female characters in the series are well-endowed.