Kimi no Te wo Hanasanuyouni
君の手を離さぬように · きみ の て お はなさぬ ように
est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
This manga is a sequel of Jungle Boy manga. This time, the story is focus on Takimoto and Kousai's relatoinship and a bit of back story about Takimoto's brother. The last part of the manga is a one shot called Partita, about A boy, Shinya and Satoru and their trouble about family life.
Source: AniList
External databases: MADB · AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections