Ore wo Erande yo Wagamama-kun
俺を選んでよワガママくん · おれ お えらんでよ わがままくん
est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
Ruka Shiota is obsessed with his older brother so much so that every relationship he enters ends the same way. No matter how hard he tries he cannot help comparing his boyfriends to his brother only to be dumped with harsh words like “I am sick of your selfishness” or “Why do not you just date your brother instead?” Each time Ruka turns to his favorite host club where the No 1 host Kei listens patiently to his complaints. But one day the unthinkable happens Rukas beloved brother gets a boyfriend of his own. Devastated Ruka runs to Kei as usual only to hear him whisper, “I will be the one to make you happy.” (Source: Kadokawa, edited) Note: Includes one extra chapter.
Source: AniList
External databases: AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections