Nagi no Oitoma

The story centers on Nagi Ōshima, a girl who is too conscious of everyone's mood and can't really get close to anyone. One day, she collapses from hyperventilation. After talking to her ex-boyfriend, she quits work, moves, and runs away from everything to start anew.

(Source: AnimeNewsNetwork)

Notes: Nominated to the 23rd Annual Tezuka Osamu Cultural Prize.