I'm Really Just Bad at Saying No

Qi Rui had two childhood friends. They'd grown up together, and the two girls were sisters.

But when they were little, one was a tomboy and the other was chubby and fair. How had they both grown up so beautiful?

And then...

"Brother Qi Rui, I've liked you for a long time. Will you go out with me?"

"Sure."

Half a month later.

"Qi Rui, how about being my boyfriend?"

"S-sure..."

Qi Rui swore to heaven that he really just didn't know how to turn them down.