Forbidden Relationship with My Girlfriend’s Sister

Synopsis

“Sigh…”

I stare down at the thick bandages wrapped around my arm. The doctor says it’s not a serious injury, but an injury is an injury nonetheless.

My girlfriend, Chisa, is away on a trip with her friends. So much for summer vacation—I’m stuck at home recuperating.

Then one day—

“Hey there! Long time no see!”

“Hinami-san…?”

Hinami is Chisa’s older sister. She’s famous throughout school—everyone adores her.

“What are you doing here?”

Apparently, Chisa arranged for her to look after me while she’s away.

“Don’t worry about it. My precious little sister asked, so of course I’d be happy to help.”

Hinami carefully wipes down my body. The subtle scent of her perfume, her soft touch as she traces along my skin… and I can’t help but react.

“Well, you’re a guy. If it’s been a while, you must have a lot built up.”

“I mean, normally my girlfriend takes care of that.”

Hinami’s hands pause, then slowly move lower. She reaches for my zipper.

“But she’s not here right now, is she? So… I’ll take care of it instead. Since I promised to look after you, I should do this responsibly too, right?”

“But that would be cheating on Chisa…”

“It’s fine, it’s fine. As long as I don’t let it go inside, it’s not cheating. Just leave it to me, okay?”