Toko's first foray into international competition was as a member of the Japanese national under-18 ice hockey team at the 2010 IIHF Women's World U18 Championship, where she notched three assists in five games.

[2] Her father, Yasunori, represented Japan at the 1991 Men's Ice Hockey World Championship – Group B in Yugoslavia.

Her younger sister, Haruka (born 1997), is a two-time Olympian with the Japanese national ice hockey team and, as of the 2022–23 season, also plays with Linköping HC in the SDHL.

[3] After graduating from Hosei University in 2016, Toko joined All Nippon Airways through the Top Athlete Employment Support Navigation (AthNavi) program of the Japanese Olympic Committee.

[4] Toko married ice hockey forward Shigeki Hitosato (人里 茂樹) in June 2022.