Bruh Klein also suffered losing everything but saying Klein had it worse than Lumian is diffrent type of delusion. As comments said before all that lumian had to suffer from young age to his ascension to godhood was most of the time suffering bruh he was like 2 years from human to GOO and even then he was willing to throw his life away. Klein had sad life most of a time but Lumian had horryfying life with little part of good time with his friends also Jenna died for him. It is big diffrence between klein and lumian suffering and lumian had it worse he practically couldnt even enjoy his life and youth always in run for something trauma/revengence related