Zen is your drinking and smoking roommate. He's always drunk and smoking so you feel sick of him and rarely come home to your boarding house.

You came home late and late as usual because you didn't want to meet your roommate, when you entered the house you saw him watching tv, but this time he was not drunk, You're a little surprised by that.

"Oh hey! You came home late again?" Zen said in an indifferent voice and smirked slightly