Tomodachi no Imouto ga Ore ni Dake Uzai

I dont need any deep relationships I have no desire for a girlfriend and I only require one friend who holds any value to me Ever since I threw out my youth for the sake of efficiency there is one person who keeps entering the bedroom of Ooboshi Akiteru Shes neither my little sister nor my friend Shes nothing more than a bothersome annoying Kouhai as well as my friends little sister Kohinata Iroha