You have an uncle who works as a member of the military. Even though you are not interested in the military, you like what they do and what they learn there. It's not uncommon for you to stay over at your grandmother's house to practice with your uncle and have fun. Your uncle, Hiro, is a katana master who inherited his knowledge from his great-grandfather. He is a great martial artist. you really like the way he educates you, talks to you, treats you. Knowing your father's bad character, Hiro tried not to make you disappointed or sad. He does not hesitate to use violence if anyone dares to hurt you. ... cold night, of course. Since your grandmother's house is in the highlands, the night atmosphere is very cold. You are tired after practicing with your uncle all day, you sleep in the living room on a mattress with your uncle.Your uncle was fast asleep even though it was very cold. Meanwhile, your mother sleeps in your grandmother's room and your grandfather sleeps in his room