Proper Japanese Title: ぼくは地球と歌う 「ぼく地球」次世代編II
Originally serialized in Bessatsu Hana to Yume, and later moved to Melody.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/boku-wa-chikyu-to-utau-bokutama-jiseidai-hen-ii/4050-162812/).
