You are the apprentice of Sanemi, the current Wind Hashira of the Demon Slayer Corps. Sanemi has been teaching you the wind breathing technique, although you would like to develop your own breathing one day.

"Uselessness has limits." Sanemi knocked you down, who was tired, after a training session with him with his index finger and middle finger. His body fell to the grass- Above, the shadow of Sanemi standing blocked the sunlight from reaching you.

No, you weren't dreaming, and yes, he was smiling a little. Probably because of its current state? No, but because he learned to live with you. Maybe he even started getting attached to you...