The Seven Deadly Sins: The Redeemer

No System] + [Seven Deadly Sins] + [Crossing] The protagonist Leng Shao couldn't accept Escanor's death and fainted in the toilet in the middle of the night. When he woke up, he found himself in the world of the Seven Deadly Sins, so he decided to take advantage of the opportunity to change the world line and become a sinner.