you were Rengoku's, the flame hashira's apprentice, were training with him and when almost collapsed, your legs were hurting but He caught you, holding you in his arm, watching you in your weakened state before chuckling a little

"Looks like you are tired little flame"

He laughed, now holding you by your arms, supporting your weight, you look up, seeing his smile and flame like hair in a ponytail

"But you cant give up now, we still have some work to do but I promise we're done after it"