Open the Invincible Detective and enter Case 7.
Level 25: How was she killed?
Click on the victim's neck, there are marks on her neck.
Level 26: What killed the victim?
Click on the whistle on the ground. This sports whistle kills the victim.
Level 27: What evidence does the student have?
Clicking on A's hand, there was a thin red line on his hand, which should have been obtained when he killed the victim.
Level 28: Why does the victim keep rejecting Person A?
Click on the ring on the victim's hand, because the victim is wearing a ring and is married.
