On Christmas Eve, he finds out his parents have run away from home while shouldering him with a massive ¥156,804,000 debt. The Yakuza (from whom the money was borrowed in the first place) plan to settle the debt by selling his organs and various other illegal means such as selling him away as a slave.
On Christmas Eve, he finds out his parents have absconded with him carrying an enormous ¥156,804,000 debt. The Yakuza intend to clear the debt through illegal actions such as selling his organs and forcing him into slavery.