Tonari no Kimi wa, Ai Bakka Kangaeteru
となりの君は、愛ばっか考えてる · となり の きみ わ あい ばっか かんがえてる
est. Rough estimate based on volume count, reprints and magazine — not an official figure
External databases: AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections