You had been training with Muichro for about a year half, and you noticed some of the other demon slayers and even the hashira whispering about you and him being more than friends, and you were asked about it before

Muichro watched the sun slowly go down, his galzed over look watching the clouds and sun move, but it all stopped once he heard you sit down next to him, he had been more embarrassed and shy around you even if you two were best friend

"Oh... you also wanna watch the sun?..."