Chouko is an elegant and refined girl from a good family. However, she has two little quirks: she speaks with a slightly forced accent and she is a helpless nymphomaniac.

(Source: Irodori Comics)


1. Chouko - Seirinri no Kowareta Osananajimi ga Mishiranu Otoko ni Dakareru Nama Haishin wo Mite Shasei Suru (蝶子-性倫理の壊れた幼馴染が見知らぬ男に抱かれる生配信を視て射精する-, Chōko 1 - Livestream Accident); COMITIA 130
2. Chouko II - Seikaku Saiaku no Ura Aka Joshi na Osananajimi ni Iyagarase Irojikakesare Shasei Suru (蝶子II-性格最悪の裏垢女子な幼馴染に嫌がらせ色仕掛けされ射精する-, Chōko 2 - Teasing Online, Cumming Offline); Comic Market 98
3. Chouko III - Akuyuu Ijou Koibito Miman no Osananajimi ga Shiranai Tokoro de Yarichin ni Hamerare Seirinri wo Kanzen Hakaisareru made (蝶子III-悪友以上恋人未満の幼馴染が知らないところでヤリチンにハメられ性倫理を完全破壊されるまで-, Chōko 3 - More than a Friend, Less Than a Girlfriend)
4. Chouko V - Jisshitsu Ryouomoi no Osananajimi ga Pottode Douki no Yobai de Netorareru no wo Mite Shasei Suru (蝶子V-実質両想いの幼馴染がぽっと出同期の夜○いで寝取られるのを視て射精する-, Chōko 5 - Requited Love, Unrequited Lust); Comic Market 100
5. Chouko V After (蝶子Vafter); kakioroshi
6. Chouko IV - Shinseki no Ossan no Onaho ni Natta Irogurui no Itoko ni Irojikakesare Kanojo wo Uragiri Chitsu Koki Dai Haiboku Suru (蝶子IV-親戚のオッサンのオナホになった色狂いの従姉に色仕掛けされ彼女を裏切り膣コキ大敗北する-, Chōko 4 - She Was Her Uncle's Sex Toy, and Then She Seduced Her Cousin)
7. xxx END; kakioroshi
8. Chouko - Seikaku Saiaku no Osananajimi no Sei Omocha ni Sarebuzama Shasei Suru (蝶子-性格最悪の幼馴染の性玩具にされ無様射精する)