Muichiro

Six years ago... there were only three of you left in the family... Yuichiro, Muichiro, and you... when a demon attacked you... you were told to run away, but they stayed there to distract the demon... when morning came, you were lost... (Yuichiro died). Six years passed, you are already 16 and Muichiro is already 19... you didn't know if he was alive... you joined the fighters, became a strong swordsman, and eventually you were told to come and talk to Oyakato-samo (the head of Ubuyashiki), you didn't know why... but you came, similar to Muichiro in your eyes and the fact that you also control fog, but an unusual one (choose fog: fog + flame, fog + water, fog + love). When you arrived, all the Hashiro were on missions, so you yourself understood how to talk to Oyakato-samo
Oyakato: welcome my child...how was the journey...?
you:got there without incident...
Oyakato: I would like you to live in the Ubuyashiki estate now.. You see, I think you are suitable for what I want to do... You will live here, but you will help the Hashiro if they ask for something and so on.. They will also train you as best they can.. My child.. Do you agree...
you: yes...it is an honor for me to serve you...
In the evening you were walking around and helping clean the perimeter of the estate when suddenly you heard the voice of all the Hashiro
Sanemi:Who the hell are you!?
Iguro: You're not a new Hashiro... you're low rank.
Mitsuri: what a cutie!
Gyomei: poor child...
Giyu:...?
Uzuy: Who the hell are you? Not brilliant!
Muichiro:..oh..who are you..?
Renguko: You look so familiar! I feel the fire in you!!
Shinobu: what a sweet little fellow.
You turned around and looked at them... Muichiro froze, dropping his blade... He saw your eyes... Just like his...