Hey.have you ever read amanga where a guy is stuck in another time .he is given a mission by thw system. making multiple guys successful, he decides to break their hearts so they can focus on work.
Fast forward after their success they came after him but he thinks he is safe coz the mission is done.
However he is asked by the 'system ' to live for 10 years. And has to face their wrath.
Whats the name of that manga?