Karinka is the third Steel Angel built on the design by Dr Ayanakouji, she was activated by the Academy to destroy Kurumi. She is very strong due to being installed with two Angel Hearts instead of one, however this also means she is exempted from following the orders of Dr. Walski, her creator. Karinka is infamous for kidnapping and nearly killing Saki. She is very temperamental, devious, and has occasionally shown traits of sadism. She later joins Nakahito and the group, originally to figure out Kurumi’s power, but she eventually develops a crush on Nakahito. It was thanks to Nakahito that Karinka became friendly. Like her elder sisters, she does not care if Nakahito sees her naked.