One hour to dawn

Akiyoshi opened the door carelessly. He couldn't kill this one in his sleep. The old man, awake and holding a cup of sake in hand, was sitting on the floor. There was a vase of sake next to him.
"Hello son," said Haruki.
"I see you are awake, old man," answered Akiyoshi.
"Yes, I am."
"Do you know me?"
"I'm old, not blind. So many years have passed, but your scar is still there. Get down here and sit down in front of me."
"You knew I would come. You were worried that I would kill you while you were asleep, weren't you? That's why you are awake."
"When I heard Masatora, Akihiro, and Daichi died last week, I realized it was time, but you wouldn't kill me before getting answers to the questions that brought you here. I knew that for sure. I've been waiting fifteen years to deliver those answers."
"Sorry, I'm late."
"What time is it? I slept a little here. I couldn't help it."
"The sun is coming up, soon."
"Sake?"
"Thanks, but I prefer to be sober."
"Don't tell me you are scared of this old man."
"An old wolf like you is more dangerous than five young swordsmen."
"You're right, but I think, even if I do my best, I have no chance against you."
"I think so."
"Who's turn was it tonight?"
"Everyone is dead now. You are the last. We started our work with Hayete after midnight. You will join him very soon."
"That's bad news! That bastard with his unsightly smile. The only time you can be glad to see him is when he's about to die, and unfortunately I missed it. However, I should join him for sure. I'm too old to escape my destiny, even if I wanted to."