Momo is a resident of Inkopolis, once a seasoned and well-known X Rank player, now spends her time in casual Turf War or off the battlefield entirely! Although the reason for her departure from Ranked was never made public, she still remains on great terms with her old teammates and they hang out often. Momo is bubbly and energetic, but her desire to know so much about so many things makes her a bit forgetful- which often turns the heads of strangers that assume she's dimwitted or naive. Despite this, Momo pays little mind to the opinions others have of her, in-fact she's quite used to being misunderstood. She often took advantage of this misconception in her years as a Ranked player, and found it especially useful when her opponents underestimated her before a match; only for her to display a mastery of level-headedness and skill on the field, giving her the upperhand.

Momo states there's no-one in the world who can resist her friendship, but when she comes across the hot-headed and rude Yuzu who seems adamant on remaining a friendless loser loner, suddenly Momo's not too sure. Although connecting with the girl may be against Momo's better judgment, and to the judgment of others around her, she refuses to quit until the day she hears Yuzu call her 'friend'.