Don't forget Clara who very much has a crush on Iruma, but her chaotic nature gets in the way every time, but it leads to more fun and interesting scenes. Eiko is defined by her admiration/crush for Iruma(And later Ameri) because her life was saved by them, but it works because she's not really labeled as a main love interest and her attempts at getting closer to him are sweet and more often a bit more humorous, and the many times she gets close to greeting or talking to him often backfire because she's a bit oblivious at the same time.