the singer reaper who got cheap skill and an op grimore an another world

jason hoshino is the son of ai hoshino an famous singer as he is the oldest of 3 siblings he love music like his mother but dispide the fans and be the center of attetion due to an incident almost cost the life of his mother and another his own who scar him as jason decide to be an singer but mosty post songs to the internet as an hide alter ego as he don't like the idol industry,olso he live an another city to avoid the fame of be the son of an famous singer as he live an normal life,normal school but have the issue to deal with bullies but he is not push over,well one day after find out an last will from an friend who pass away who was the one who help jason to introduce to the new city about an secret an the same friend metion an secret an the house and what is inside is for jason,as he decide to investigate...what he find....he will change his life for the better as he is about to get an new experience