[Solo Leveling] Give Me Back My Sweet Puppy Brother!

The sweet younger guy she's looked after for years suddenly powers up, growing taller, getting handsome, and becoming mature all in one go. He goes from the weakest E-rank Hunter all the way to S-rank, crushing a bunch of S-rank big shots.

Most importantly, the way he looks at her is kind of strange! He used to call her "Sis," but now he's rebellious enough to call her by her name!

An seems calm on the outside, but inside she's heartbroken as she pushes away her suddenly overbearing "unfilial little brother." In her mind, she's already figuring out how to get back to their peaceful old routine.

Maybe... she should go back to her country and hide for a while?

Based on the original comic Solo Leveling.

I'm passionately going after Cheng! Cheng is such a sweet puppy at first, and then he gets way too handsome later. I just can't resist! How can the Shadow Monarch be so handsome? Aaaah! I really want to hear him call me "Sis"!!! (Very loud, )

This is a rare pairing in a rare fandom. It's so cold even a polar bear would freeze to death. I looked everywhere and found no content, so I'll write the first Cheng-focused BG fic!

P.S. Includes power-ups and an overpowered heroine. Just writing for fun, and how much I write depends on my inspiration.

Theme: Love grows steadily over time