Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken

『エッチなお姉ちゃんが、褐色巨乳の悪魔だった件』はUnknownが開発したビジュアルノベルです。発売日：TBA。プレイヤー評価：6.9/10。When he wakes up one morning, the protagonist who is an only child, finds himself having an older sister―― She has tanned skin and a voluptuous bod...