Our House (JP 2017) (2019)

Description:

Since her father went missing, Seri has lived with her mother Kiriko. Seri will turn 14 soon. She has conflicting emotions because her mother begins dating again. Sana wakes up and finds herself on a ferry. She doesn't remember anything about herself or how she got on the ferry. Sana meets Toko on the ferry and begins to live at Tokyo's home.