I'm a weird expert in Japan

My name is Si Tiao Lian and I’m a violinist.
But most of the time I’m not giving concerts, but doing weird jobs.
For example, there is a light novel writer who gained weight inexplicably, and there is a school idol who was cursed for refusing a confession.
Or a girl with low presence who suddenly gained attention that she didn’t deserve.
But now, my life is in the hands of a girl named Kasumigaoka Utaha.
It's not that a hatchet is a good boat, it's just a simple, literal meaning.
Because I was turned into a bat.
This is also the reason why I became a weird expert.
This book is also known as "No One Understands Weirdness Better Than Me", "Mr. Shijo Doesn't Want to Fight Weirdness", etc.
PS: The main stage is White Album 2 + the stranger heroine, and the background world view is provided by Kaguya-sama: Love is War + the epilogue of the Monogatari series.
PS2: It doesn’t matter if you haven’t watched the Monogatari series. It is essentially a youth love story with supernatural events.
PS3: Although I believe you have heard of "Love Cycle"_(:з」∠)_