Doujinshi with title Onee-chan ni Ai ni Kita dake nanoni!? Ane to sono Tomodachi ga Boku no are o Ki ni Icchatte Gal Harem! and alternative title I Just Came to See My Sister, but She and Her Friends Liked My Cock and Became My Gyaru Harem | お姉ちゃんに会いに来ただけなのに!?姉とその友達が僕のアレを気に入っちゃってギャルハーレム!