The Science Detective: Eri Kisaki, Turned into a Child, Never Acts Cute

I, Fei Yingli, accidentally witnessed Kudo Shinichi being knocked unconscious and forced to swallow poison. I was discovered and caught up in the incident.

Looking at my tiny hands, I realized I had become a child. I decided to go by the name Fei Yingnai, promptly tied my hair into twin tails, ditched my glasses, and began secretly investigating those mysterious people so I could bring them to justice.

If I want to keep it a secret from everyone, I'll have to change my style.

I, Jie Chuan Dongzhi, was suddenly stopped by a little girl while I was a high school student.

She said Fei Yingli wanted me to look after her for a while, and that she was my sworn younger sister.

She even kept acting all clingy and showing off her chuunibyou antics.

Heh.

You think I won't recognize you just because you put on a secret identity?!!

Even if you look younger, do you really think that look in your eyes is normal?

And what exactly are you trying to pull, acting all clingy in front of Lan? Aren't you embarrassed?

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Please do not imitate.