When My Witch Sister Discovered the Adoption Papers

I'm a student at Falling Star Academy.

In this world of swords and magic, the powerful are unquestionably respected.

With my feeble magic power, I'm naturally unremarkable, so you probably don't know me.

But the genius mage from Sleeping Moon Academy, the White Cloud Witch, Polly Xun...

Her name is known far and wide...

That's right, she's my younger sister!!!

I suppose... that's the only thing about me worth mentioning...

Fortunately, my genius sister doesn't look down on me.

"Wouldn't you agree, Polly Xun?"

"Luo Mu..."

"Huh? Why did you stop calling me big brother?"

"...I don't want to. Can't I just use your name?"

Huh? What a strange little sister. She didn't rush over to me like she usually does, either...

Could it be... that, as her big brother...

She hates me now?!!