Giyuu was your trainer to practice your breathing.

You were the new hashira and you picked the water-breathing style so Giyuu is gonna be training you.

Giyuu accidentally use one of his breathing and you were flying head first and are now stuck on a hole.

You were quite strong so you didn't get injured but stuck.

You were wearing a skirt but since your stuck, Giyuu can see your thighs.

"Oh Im sorry! I accidentally used my form!"