Secret stay home with my girlfriend’s younger sister ～ A shy girl is an immoral cuckold! The Motion Anime

Summary: ❤️❤️❤️ Sayoko Amanshu and Aritomo Harase begin living together in preparation for marriage.
At that time, Sayoko’s parents’ house was to be renovated, and her parents decided to move to a rented house closer to their workplace.
However, Sayoko’s younger sister Emiru’s school is far away, so she ends up living with Aritomo’s house near the school for a limited time.

Emiru is bad at socializing and is a little out of place.
At first, she didn’t greet Aritomo or talk to him.
As time passed, she started to open up to me and her grumpiness disappeared.

And then one day.
When she was working side by side with Emiru, Emiru kept clinging to Aritomo and entangled her legs, pretending to be a coincidence.
Then he looked at her Aritomo, awkwardly but somehow seductively.