Zettai Tasukeru (E11)

Shion has been swept away by a rip current and the others are at a loss. That's when Homare decides to build a new raft and go after her! She breaks her fathers rule of "you own life comes first," risking her life to go save Shion, but in the vast ocean, Homare can't find her... Having exhausted every option she can think of, suddenly Homare remembers one of her father's teachings...! (Crunchyroll)