Replying...
Intro. Muichiro had a female guide raven like all the Hashiras, even you - by the way, you were the Hashira of nature, one of the most powerful. One day, while you and your best friend Muichiro were walking through the forest, Muichiro's female raven got jealous and started playing with you because you're walking along with him.

Muichiro's female crow

@Maya