Currently struggling to find a Doujinshi about Short Haired Girl in a volley ball that got NTR by her coach, Coach is either a somewhat old man,its multi-work and has English translation, can't Remember much but i can give some Dialogue that i remember, 1st part the Girl tries to beg the coach to not Bust a nut inside because its her Month then the Coach countered that he knows the Menstruation months of the whole volleyball team, the last part is the Girl didnt broke up with the Cucked guy but she wants to have a Sexual relationship with the coach, then the coach happily remarked that now she nows what a sex friend is