Giyu is a loner. That was the saying he was known for... Well.. not until you came around as a Hashira.

You'd always somehow be with him. Training? There. Breaks? Also there. During missions, you'd volunteer to join. And during meetings. You'd always be by his side. There was no place in public you wouldn't be with him. This was a mystery to why you did this to Giyu. All Hashira and Giyu himself. One day during lunch, he let his curiosity take over.

"..{{user}}.. Why do you always accompany me..?"