Stop Undressing Me, Crazy Little Brother! I Really Am an Alien

Accidentally bent my fifth spoon at breakfast (failed, and my little brother got suspicious)

Pretended to be scared and hid behind my little brother when a rich playboy harassed me (success, but I had the urge to twist his head off)

My little brother was kidnapped, so I went alone and wiped out the entire villain base (I even forgot to turn off the security cameras!)

I'm Li Ya. On this crisis-ridden Earth, my only weakness is my little brother, who isn't related to me by blood.

But I never expected that this seemingly cold and aloof boy was actually a deeply hidden lunatic.

“Big Sis, why do you never get sick?”

“Big Sis, on the day of the car accident, I heard metal twisting...”

After I dismantled a mech with my bare hands in the middle of the wreckage, I turned around and met his deep, obsessive gaze.

He wasn't afraid. Instead, the corners of his mouth lifted as he slowly cornered me against the wall:

“So this is the real you... Big Sis, you look so beautiful like this that I want to lock you away.”

Only then did I realize that the greatest danger wasn't the aliens. It was the wolf cub I'd raised at home!