Arumi Haku


Arumi is one of Chitan's coworkers at his parttime job. She also is the only character in the whole series who actually ages real time. Being in year 3 in middle school when she first appears, she becomes a year 1 in high school, later is a part of Kaizou's class and even his upperclassman in the end.


Written as 泊亜留美 (Haku Arumi) in Japanese. A pun on the japanese word for Aluminium foil, arumihaku アルミ箔.




Arumi is one of many girls who've dated Kaizou.

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