http://www.dlsite.com/maniax/work/=/product_id/RJ189924.html
http://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_104060/
You have transferred to the same school as your younger step sister, Sayo.
But, Sayo has fallen victim to a dastardly trap set by the schools Queen Bee Elena and is now a raving sex addict. Will you attempt to save Sayo? Or perhaps lend a helping hand in her descent into debauchery.
A secret after school stage of sex, service and gangbangery.
CV:
Koneko Nanami (Sayo)
Kanoko (Elena)
Ao Inukai (Suzu)
Nodoka Nishiura (Chitose)
Moe Itou (Mana)

Release: 2016/12/02
File type: exe
Genre: 3D Simulation, lolicon, anal, oral, rape, bondage, handjob, bukkake, internal cumshot, gangbang, dp, tan, sex toys, glasses, stockings, swimsuit, school uniform, x-ray
Language: japanese
Interface: japanese
Censorship: no
Size: 3.3 GB