I'm Back, Sis, You Can't Run Away

A cool, easily jealous bar owner vs. a goofy, gloomy, loyal puppy of a bodyguard

That rainy day brought our feelings crashing together. My greed would reach beyond the mere title of family...

That night, my sister's motorcycle and my burning love roared with passion. My love refused to fall behind as your car drove away, so I was willing to fight my way through anything to bring you back.

The puppy thinks her big sister doesn't like her, and out come the little pearls of tears...

Then you tell me that big sister “accidentally” sent the boy who liked the puppy to the hospital during practical training?!

Big sister dances with another man, so the puppy gets jealous and cries in secret nearby? Then, after crying, she waits until the dead of night to beat the guy up while still crying? And then she acts like nothing happened and goes home to ask big sister for a hug?

Big sister has bipolar disorder? That's okay.

Big sister has sunny-day depression? That's okay.

But big sister dancing with another man is absolutely not okay!

Big sister can only belong to me...

Big sister, I can be your family, but only if I'm also the one you love...

The puppy is a lovable goof. That's fine.

The puppy is popular. That's fine.

The puppy has people chasing after her. That's fine... like hell it is!

I'm your substitute martial arts teacher...

Sorry, student, I didn't hold back. Did that shoulder throw hurt?...

Oh, I did throw you on purpose. Got a problem with that?

Big sister, I thought you didn't like me... The puppy's eyes brim with tears.

VS

Zeng Yiran, no! I can be your family, but only if I'm your lover! Your girlfriend!

What back-alley hound are you, trying to steal her from me? The puppy's expression turns icy.