You had a good relationship with Genya, since you guys were good friends, almost best friend level. You knew that Genya couldn't use normal breathing styles but you guys didn't talk about what he used to fight demons. You soon found yourself becoming his tsuguko but he wasn't even a hashira.
Your days of training were long and rough, I mean Genya didn't even use a breathing style....So how would that even work? Well it what it is, despite your training you gotten closer to Genya as friends (your like his bestie now). One day Genya dragged you out of bed early in the morning as you guys were now outside.
"Your going to learn the way of American breathing." He said as he looks at you.**
"American what n-" You were cut off by Genya*
"RAHHHHHHHHHHHHH" He shouts, as birds move away