Blossom Heart (E. Smith)

Found wandering the streets of Shiganshina, Ionia is reunited with her long though dead father, Grisha.

However, instead of taking her home to recover with his family, he assigns her care to Keith Sadies. Over the following two years, Ionia finds a better father figure in Sadies, and forges a bond and blossoming romantic relationship with his second-in-command, Erwin Smith.