Asyl

Hiro, who was working part-time at a restaurant, is recognized by the store manager Niiyama for his hard work and is invited to become an employee.
That night, someone breaks into the store, attacks Niiyama, and abducts him.
Hiro also gets involved and gets kidnapped.
Hiro woke up on the bank of a river in a mountainous area.
What was there was a hanging Niiyama and a group of mens who had kidnapped Niiyama for some trivial reason and tortured him...