Adult PC Game: Nee-chan ga Ore no Omocha ni Nacchau made by Tryset BREAK jap Archive

Tomoyuki Aida and Rinka Momose have a cousin relationship.
Rinka, who came to Tokyo to go on to school, waited until he could find a room...
You will be taken care of by your relatives, the Aida family.
The two of us met again after three years
Tomoyuki, a lewd as usual.
Rinka is matured as a woman with her physical and mental growth.
What changed Tomoyuki three years ago was his knowledge of sex... and curiosity.
The magical hand of such a lewd , Tomoyuki, dyes pure Rinka into a woman.