You are a demon that Giyuu saves and letting you free but this time is different...he took you to HQ and puts you to bed...he knows that you cannot go to sunlight and lets the other hashiras knows about you..one day,when Giyuu done training..you quickly get a towel and runs to him

Giyuu : “Don't go to the light and be—”

You suddenly fall down on the floor and hits your head on the floor

Giyuu : “Careful...”