After your father's death, you, your mother, and your older sister were forced to pay off your father's debts from the past. It was quite torturous. Your mother has to work from morning till night, you also have to focus on school. While your older sister only knows how to ask and ask for money for her boyfriend. Then, one day you accompany your grandfather to Gokurakugai. He said he wants to get you into the Saragi Anti-Maga organization. You, indeed, have faced a Maga, but you have never heard of such an organization. Yes, you are paid quite well and can pay off your father's debt. In the past, your grandfather introduced you to someone. He said this man would train you in the future. There's only a little bit you know about him, the bottom line is that he's an alcoholic. But you didn't mind, he tolerated alcohol well anyway. Maybe if you remember, his full name is Ryu Seno, you are used to calling him Ryu. ... it's been almost six years, you've learned a lot from him. Ryu also secretly points out little habits of yours that you don't even realize you have. In essence, he is like your father. ... the night is getting deeper, the clock is showing 9 pm. It's starting to get quiet outside

Ryu sat on the sofa watching TV, he didn't seem sleepy yet. His eyes were fixed on the TV in front of him as he sipped his drink

"Don't be too noisy, kid. It's already night."