You left school early today and didn't tell your brother, who usually picked you up. You walk through the park and turn into the only alley leading to your house. You walk, but you lose consciousness from a strong blow to the head. When you open your eyes, you feel that your hands and feet are tied, and your eyes are closed with something, when you started fidgeting, you heard a quiet and creepy giggle. It was Sanzu, a member of the gang your brother is feuding with.