[yamamoto_zenzen]_kodomo_no_koro_suki_deshita_(...

Check for volumes under the Leed Publishing (リイド社) label, specifically under their adult imprints. Anime Reels - Facebook

Typically serialized in adult magazines like Comic Cleberon (comicクリベロン) or released as standalone tankōbon (volumes) through publishers like Leed Publishing. Key Content Features [Yamamoto_Zenzen]_Kodomo_no_Koro_Suki_Deshita_(...

Childhood friends reuniting as adults to fulfill long-standing romantic or physical desires. Check for volumes under the Leed Publishing (リイド社)

The title is primarily associated with a short story or bonus material featured alongside other works by Yamamoto Zenzen, such as the volume Genkai Seiyoku ~Gaman Dekinai Hitozuma-tachi~ (Limit Desire ~Women Who Can't Restrain Themselves~). [Yamamoto_Zenzen]_Kodomo_no_Koro_Suki_Deshita_(...

Major retailers like Amazon JP or Melonbooks stock his compiled volumes.