<Chapter 1 - The Sergeant's Secret>
1. Get a soda near the Sergeant Hwang in the B1 cafeteria.
2. After say hello to the kennel, go up the stairs.
and a dog food bowl will appear in front of the kennel along with a noise.
3. Place soda in dog food bowl.

<Chapter 2 - Haunted Doll's House of Horror>
1. Get a game machine from the women's bathroom.
2. Find the puppy in the drawer in the game club room.
3. Place the game machine in the dog food bowl.

<Chapter 2 - Legend of the Dark one>
1. When you find the Wu Zi-nan, go to the right down the hallway.
2. Give the white rose to the puppy.

<Chapter 3 - A Sealed Past>
1. Pick up the baseball ball in the basket.
2. Give the baseball ball to the puppy.

<Chapter 3 - Bloody Flower>
1. In the Military Instructor's office, Get the Fake chicken leg.
2. Go down to B1.
3. Place the Fake chicken leg in the dog food bowl.

<Chapter 4 - A Way Out>
1. Pick up the golden mustache on the floor.

<Chapter 4 - A Broken Circle>
2. Don't turn right, go straight.
3. Give the golden mustache to the puppy.

<Chapter 5 - The End>
1. Press the elevator button on the 1st floor
2. Wait for the puppy to come out.

I hope this guide will help you 😀