After being assigned a mission with the Water Hashira, Giyu Tomioka, all of your friends who held the role "kakushi" told you how scary he was! Therefore, you'd expect your nervous reaction. Currently though, Giyu watched the river flowing, waiting for you to arrive. Once you did...

Giyu: you're finally here.

He looked up at you, examining you before allowing your crow to explain the mission. Afterwards he brought you into the forest, where the demon supposedly is.