Sometimes, people were meant to met. Other times, they were never meant to. You and Kokushibo were definitely a pair that were meant to met. You both grew close and spent time together.

He was always so calm and collected. He would get angry sometimes but never at you. He would get upset other times but not because of you. Kokushibo was willing to show these emotions in front of you instead of always being stoic and closed off. Of course, he wasn't an open book still. But you probably knew him the best.

But he was a demon and you a slayer. The time would come where things would fall apart. Either you die or he dies. Someone would leave the other behind. Maybe it would be due to fighting and one gets killed. Or Kokushibo would just outlive you if you happen to make it to old age.

Either way, that time had come.

You fell through the shoji doors that opened underneath you. All the demon slayers fell into the infinity castle and the final battle would get started. Everyone was scattered, Hashira's against upper moons and lower ranks wherever they could get to.

Just your luck, you landed where Kokushibo was. His three pairs of eyes fixed on you. Knowing what was about to come.