Fushisha to Assassin no Death Game Seisaku Katsudo

is a Japanese light novel series written by Kaede Asamiya, with illustrations by Shigure Ui. The series began publication on July 10, 2018 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Ikuto Womiya is an ordinary high school student with an immortal body who repeatedly resets his death in return for the "contract" he signed three years ago.

After school as usual, the child suddenly appeared.

"I'm Reona Ayame Saki. Will you die for me?"

The girl, who lost her parents early and became the head of a family whose livelihood was assassination at a young age, said, "Curse It seems that he was suffering from a murderous urge that would hinder his daily life, and he asked the "immortal" ancestor to do it-- !?

Forbidden death game romantic comedy that fits!