Denma

 is a featured Sci-fi webtoon created by Youngsoon Yang; it updated every Wednesday, Thursday, Friday, Saturday, Sunday. The original Korean Webtoon premiered on Naver and concluded on December 29, 2019. There are several video games and a web novel of the series.

The series has several installments:
 * Iron Dog John Doe (cancelled prequel; Young Red and I.Q. Jump-only)
 * Rami Record (prequel; former Yahoo! Cartoon World webtoon, Naver-only)

Synopsis
''Dike the Invincible Death is the #1 target for bounty hunters across planet Urano. After getting drugged by a mysterious woman in a bar, Dike wakes up in the body of Denma, a 12-year-old space courier. With Denma's powers as a Quanx, he journeys across the galaxy fighting futuristic societies, flying spaceships, and foiling insidious plots, all to get his body back.''

A space opera that unfolds around an intergalactic courier delivery service.

Silverquick is an intergalactic courier delivery services corporate that hires Quanx with special abilities as their delivery men. Dike a.k.a the Merciless Death of Planet Urano becomes indebted to Silverquick, and becomes trapped inside a body of a small child named Denma. He takes off in a journey of making interstellar deliveries in hope of paying off his debt and reclaiming his body...

Related

 * Iron Dog John Doe: Same creator, same worldview
 * Rami Record: Same creator, same worldview

Light Novel

 * Records the Quanx - Denma S.E. (Denma Another Episodes)

Video Games

 * Yo! Villains
 * Denma with NAVER WEBTOON
 * Densinma with NAVER WEBTOON