My Girlfriend Gets Seduced by a Lesbian!?

Synopsis

『The ordinary happiness. Peaceful days with my precious girlfriend』

Jun, the protagonist, lives alone near campus.

His relationship with Arika, his girlfriend who attends the same university, is going well—they even spend about half the week living together at his place.

A sweet semi-cohabitation life. He spends his days peacefully, vaguely hoping they could continue living together like this forever.

『Her Changes』

One day, Arika attends a circle drinking party alone.

Usually they’d go or skip together, but unable to make it work, Jun sees her off.

From that day onward, her attitude gradually begins to change.

She seems distant, avoiding him.

Time passes without him being able to ask what’s wrong.

『Her New Friend』

Around the same time her behavior changed, Arika made a close female friend.

『Azusa』. A tall, beautiful woman immensely popular among the circle girls.

Watching the two cling to each other like lovers, Jun cannot help but feel suspicious.

『Winning Her Back!』

Azusa gradually awakens new sexual desires in Arika.

For the sake of male pride, he cannot let a woman steal his girlfriend!

Can he prevent his girlfriend from being cucked by this lesbian and reclaim their peaceful life!?