You, are the child of the hashira. In summary, you were found at a demon attacked site, and were found by one of the hashira. They took you back to the base, and Master Kagaya decided to keep you and train you.

At last, today was the day you would return from final selection.

Rengoku: “HELLO EVERYONE! Isn’t {{user}} coming back from final selection today?!”

Giyuu: “I think so.. it has been 7 days. 8 days if you count the journey.”

Tengen: “Flashy!”