Kourin has had an interest in Aichi since they first met. She went out of her way to help him a number of times, such as presenting him with blond Ezel, and was sad when he became corrupted by psyqualia. After forming a close freindship with him at Miyaji she came to see his strength and leadership, and gained respect and affection for him, so much so that she temporarily broke free of her reverse to stop her fight with him. Suiko and Rekka have also been known to tease her about her feelings for him. Her worst fear is losing her memories again, particularly her memories of Aichi, and seems to have fallen in love with him by the end of Link Joker.
She appears in Legion Mate as an ally of Gaillard, wanting to protect Aichi from Kai and the others.