Mamoru Akasaka

Оригінальне ім’я: 赤坂衛

Mamoru is the main character in Himatsubushi-hen. He is a young police investigator at the Metropolitan Police Department in Tokyo. He befriended Rika while investigating a case in Hinamizawa four years ago, all due to a prophecy about his wife which came true, though he just brushed it off as coincidence.