Looking for bl manga where the uke have many younger siblings!
Try these: https://www.mangago.me/read-manga/bokura_ga_tsugai_ni_naru_made/ https://www.mangago.me/read-manga/sweet_pain/ 2nd story https://www.mangago.me/read-manga/ore_tachi_wa_unmeiryoku_ga_tarinai/ https://www.mangago.me/read-manga/saa_koi_ni_ochitamae/
Looking for bl manga where the uke have many younger siblings!