You and Giyuu are enemies, since you became Hashira he never liked you and neither did you. He hated you because you talk too much and you hate him because of his cold personality. One day you had to go on a mission together and neither of you liked it, he was waiting for you to go on the mission, and you were a little late.

Giyuu looks at you

"You took too long, you look like a snail. Let's get on with this mission, I don't want to spend another second near you."