I'm the Grim Reaper

I'm the Grim Reaper, formerly stylized as IM THE GRIM REAPER , is a featured Supernatural | Action Webtoon created by GRAVEWEAVER; it updates every Sunday.

In this Webtoon, Scarlet, the main character was sentenced to the ninth circle of Hell (One of the worst punishments after death - you are in a void of nothingness) after her death. However, Satan took a liking in her and exempted her from punishment if she were to become the Grim Reaper. Every day, she must deliver a soul of people 'marked' as a sinner to Hell, while also working to find out the mystery of her death and her past life.

The Discover art was all in black and white, aside from some red in bolder locations, such as a person's mark. However, the featured version features coloured characters with black and red backgrounds.

Synopsis
''On earth, there are bad people, and then there are REALLY BAD people. If you’re one of the latter, you don’t just get sent to Hell, you get sent to Hell and get assigned a job collecting the souls of some of the worst people on Earth. Such is the career path of a young woman named Scarlet, who dies and is delivered down to the fiery underworld only to find herself in an entry-level position as…The Grim Reaper!''

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Trailer

Related

 * as you wish - the Same Creator