Papa no Sukinahito
パパの好きなひと · ぱぱ の すき な ひと
est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
Let's be our family! Tomoya has been bullied since he was little. The only one who protected Tomoya was a good-looking and gentle childhood friend, Kouhei. They reunited for the first time in a few years, and unexpectedly, Kouhei already became a daddy of a child! Tomoya couldn't hide his shock, but he was unable to refuse if Kouhei ask for his help, who struggles to raise a child as a single parent.
Source: AniList
External databases: MADB · AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections