One Piece – Thundergod Marine - Chapter 138 Manipulator Part 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

The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together. A man named Kururi Helan.

A 29 year old civil employment exam student wakes up in a blank white room and meets a baby angel. This baby angel informs him that he died in his sleep due to heart disease like his father and grandfather. Remembering his mom and their last conversation he says that he will take on a series of life and death tests that the baby angel offers him. From this point on he must put his life on the line and fight in the stage called ‘Arena’. And Every time he clears a test he will gain abilities and weapons to increase his strength. All to clear the tests and get his life back. This is his story of his fights in the ‘Arena’.

“Hey, wait! I'm not a god, I'm just a guy who loves trash!”Rhys loves trash. Trashy anime, trashy novels, trashy games, he can't get enough. Which was all well and good until one day, his passion for trash gets him mistaken as an actual trash god. Whisked away into another world, Rhys wakes up in a trash heap as a trash talent with trash skills and no chance of progression. Given his trashy start, it seems there's no hope for him.Or at least, there wouldn't be for a lesser man. But Rhys loves trash.There's only one path before him. Embrace the trash! Empower the trash! Dig the diamonds out from the trash! Polish the trash until it shines brighter than gold! If there's one thing Rhys is passionate about, it's trash. And even in another world, he isn't going to stop until he proves that trash shouldn't be overlooked!What to expect: Trash charactersTrash skillsTrash storyNumber go upCultivation-style systemFast-paced progression