Fic post from my archive.
Soi is worn out from work and Yoruichi comes to visit.
"Your hair will snarl if you leave it like that," Yoruichi-sama told her, plucking the half-unraveled braid out of Soi's fingers. Soi blushed a little, but sat meekly while Yoruichi-sama undid her hair with swift, warm hands. "What's going on that's got you so worn out?"