Kaede Katagiri

Kaede Katagiri (片桐 楓 "Kaede Katagiri") is a member of Katagiri family. She is the younger sister of Ken Katagiri and Kanata's aunt.

Biography
Like Ryosuke, Kaede works at the Gunma University Hospital. She meets Kanata to inform him of the details of his father's death, and told him that he had continued to support him until he died in hospital, and that although he had not been able to speak to Kanata, never abandoned him until the end.

Kaede is married to the surgeon who operated on Ken Katagiri, who is probably Takahashi Ryo.