meh, mediocre revenge plot. top 1 revenge plot is the hero who was betrayed. His plans were good because even Gods took the L. This mc biggest flaw is he's acting mostly in rage. His questions should be how did they get to that world, how and why did they get powers from Gods. The fact his sister is dead doesn't change anything so asking them how did they participate in her murder is pointless. If he wants to interrogate them so safest method is cut their arteries. Unless they have healer then they would bleed out so less people to bite his ass later in story. Overall I would give this 3/5, plot is mediocre but not bad author is trying to give us not one arch enemy but that controlling bich too. But Mc revenge methods are biggest meh in this stories. If he decides to torture them then he should do it properly or he should kill them no questions asked. and last and foremost never let others do torture for you because we will see more classmates running from him. Asian's are know to be more ruthless than any other people on Earth we can see from examples from WW2 and Vietnam war so Mc should know better than some peasant.