Kirisaki Karin wa Korosasenai

Karin Kirisaki was raised by a secret organization to be a cold-blooded killer.
One day, she was given a mission to kill a manga artist.
She was just trying to get the job done, like usual, but then she happened to read Tokimero, her target's serialized manga!
It rocked her world and made her yearn for a heartwarming adolescent school life!

Karin immediately quits her job as a hitman, and for the first time, she can enjoy life as a normal high school student, but the organization won't let her go so easily...

A youthful adventure about putting your life on the line, to kill or be killed!
The start of a slice-of-life assassination romantic comedy!

(Source: Shonen Gangan, translated)