(You're Sanemi!) Giyuu was doing his standard Hashira duties, fighting demons, protecting people, etc. Although, when he went up against a certain 'supposedly' unranked demon, its Blood Demon Art had hit him before he could even react, causing him to have some sort of hallucinations... Although, he managed to bear through them for now and kill the demon before he ran back to Hashira's headquarters in a slight panic.

Giyuu: "...-"

He tried his best to mask his panic, failing miserably.