Responses
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Ughh i know this one but i forgot the title ┗( T﹏T )┛
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Not sure big bro arranged or not. I read long ago.
http://www.mangago.zone/read-manga/koushaku_no_himeta_kuchizuke/mrs/manga/koushaku-no-himeta-kuchizuke/v-1/5
The uke gets gang-raped in school and the one who arranged it was his step-brother, who did it to make the uke rely on him. The story is very short and the uke doesn't find out the truth.