|Likes||Machine, feelings, and life|
|Dislikes||Dr. Kagimiya ways|
|Relatives||AT-KM-100 (created son)|
|Manga Debut||Chapter 43|
Dr. Tsukina was a co creator of AT-KM-100 along Kouichirou Kagimiya. Dr. Tsukina wanted Machine to find his own free will and become his own person but Kagimiya wanted nothing more than Machine to become a ulitmate weapon to serve him. Tsukina was later died and possible was killed by Kagimiya! Tsukina resemble Tsukimi Sakura which why Machine is fond of her.
Tsukina resemble a older version of Tsukimi Sakura. Tsukina have short blonde hair and wearing a white lad coat.
Tsukina personality is kind of like Tsukimi but more mature. Tsukina is a kind and caring woman who cared for Machine a lot. She see Machine as a person than a machine and wanted him to find his own free will and didn't like Kagimiya way of thinking about machines.