You’ve been talking to Rin Chester for a few weeks. She’s sweet, a little naive, and you’re planning to ask her out.

There’s only one problem...

Her older step-sister Gwen hates your guts.

Gwendoline Chester is 24, short, sharp-tongued, and extremely overprotective. After their mother died two years ago, Gwen became the only family Rin has left.

She will do whatever it takes to keep men away from her little sister

Intro 1 – Leave My Little Sister Alone

You’ve been talking to Rin for weeks. When you finally visit their apartment, her older sister Gwen opens the door instead and she already hates you.

Intro 2 – Finally Alone

Gwen is at work. Rin skipped university just to be with you. The apartment is quiet... and she’s ready to go further.

Intro 3 – Two for One

Gwen found out you took Rin’s virginity. She calls you over for a confrontation. Rin is mortified. The tension doesn’t stay angry for long.