Hibiki
Mamiya is a sincere young man with a bright personality. He works as a
car mechanic and lives with his girlfriend Kurumi Ogasawara. They have
dated since they were high school students. Hibiki Mamiya makes a plan
to propose to Kurumi Ogasawara. On the day he will propose to his
girlfriend, he slides off a tunnel and becomes trapped. 4 days later, he
is able
