Poisoning the World The Secret Service Mysterious Doctor is a Young Beastly Wife - Chapter 23 – His Highness the Crown Prince (2)

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

Oscar, a destitute young boy, died in a tragic accident and was reborn in the forgotten realm. As a member of the lowly Birch tribe, his solace comes from the fragments of a guardian's spirit, residing in his soul. After the decimation of his family in the hands of a powerful race known as the dreads, he embarked on the part of revenge, leading him to the path of transcendence.

I met the male lead in prison.

A student who was preparing the Civil Service examination for 4th year, suddenly he found himself in an unfamiliar body 3 years ago.

As well as a status window displaying a threat in front of his eyes!

※Speciality: He used to take and sell idol’s data.