Higehiro Vol 1

Higehiro Vol 1 by Shimesaba. A Drama manga rated Older Teen, published in English by One Peace Books.

Freshly rejected by his crush, salaryman Yoshida stumbles home drunk and finds a high school runaway named Sayu sitting by the road. He lets her stay, strictly as a guardian, and the two slowly help each other heal. Adapted from the light novels.