Quick Transmigration: I'm Great at Reforming Scumbags!

[Male lead in quick transmigration + No fixed CP + Redeeming scumbags and saving those they hurt]

Shen Wen worked himself to death in the modern world, grinding away until he collapsed from exhaustion in the early hours. After binding to the Scumbag Redemption System, he chooses to take the place of scumbags and save the people whose lives they ruined.

(1) An abusive dad who smokes, drinks, and gambles?

(2) A mama's boy who hands over his entire salary?

(3) The brother who takes all the family fortune in a story about a real and fake heiress?

(4) A fake great scholar from ancient times?

(5) A shut-in who pretends to be a handsome roommate?