MTL - Start with Batman - Chapter 277 super scientist

A person in their third year of high school, experiences the arrival of a divorce comeback system 20 years early. At 38 years old, with a failed marriage, standing at the crossroads of the established and confused years, you recall your young days with your childhood sweetheart. After marriage, you cut off contact and have no more news of her. Re-establishing contact with Xu Qianqian will reward you with 300 RMB. Eighteen-year-old Jiang Nian glanced at the system task on the panel and then at Xu Qianqian living next door, falling into deep thought. Hmm... it seems the system came early. There is another issue: who is the future ex-wife? Hmm... Jiang Nian couldn't hold back. Being eighteen every year, he foresees a divorce in the future. The system issues a task to take revenge on the future ex-wife. Jiang Nian looked at the un-darkened version of the future ex-wife in front of him and fell into thought again. The childhood sweetheart, future ex-wife, and future ex-girlfriend, all appear in their younger versions.

Shan He wakes up and realizes that he has become a gin in the world of Conan!
Use this identity to tease Conan and deceive the BOSS.
Start his wicked life!

Content Labels: Original Towards Young Man Inspirational Life Rebirth
Search keywords: Protagonist: Shan Heqing (gin) ┃ Supporting roles: Edogawa Conan, Maurilan, Belmod, Vodka, Kudo Yusaku ┃ Others: Conan, bad taste, gin, sweet

- Description from novelbuddy

An 18-year-old poor college student tried to apply for a job as a tutor but his life almost ended as demons' meal. In his last breath, a mysterious woman gave him a strange power. When he opened his eyes he had turned into a demon with a system that would turn him into… A pervert.

Now he must lived with his dual identity as a model student named Ethan and an incubus named Damian.