C304 Exemplary Loop Meter

Zhao Chuanqi walked around the room, walking to the door and took down the grenade. On the table, he saw a roll of tape.

He taped the grenade to the wall, then used a rope to attach the pull-ring to the door.

Whenever someone opened the door, the grenade on the wall would explode. Those who entered the room were unable to guard against it and suffered heavy casualties