Tsukimura Emu

The childhood friend of Ryuu, an obedient, easy going, good girl that never done anything wrong in her life. Like all childhood friends, she has a crush on Ryuu.

She's another of Minkei Academy's three great idols. She's very devoted to Ryuu

Spoiler

to the point that she would even sacrifice herself just to protect him.

She seems to be holding affection toward him based on the things she do like bringing the food she cooked to Ryuu or going to his house to pick him up. She made a promise with him that they'll hang out once he has come back from Mirokujima but

Spoiler

due to the Maya Federation's false propaganda, she ended up believing that everyone who went there, including Ryuu, died. She probably also got jealous seeing him and Kanu getting along well together.

She's a member of the Art club and the class representative. A thoughtful and kind girl. She's quite altruistic and immediately pushes herself to the limit but she does it without anyone noticing it as she has the tendency to keep everything to herself.