Yiyi Xu

A dedicated scientist and professor at the Alltale Management Facility, this hardworking professional maintains a friendly bond with colleagues like Naomi Katagaki and Tsunehisa Senko. While she deeply respects regulations, she occasionally finds herself influenced by Senko’s unconventional habits, even participating in secret facility barbecues. Known for her peculiar habit of intruding on others' rooms to perform thorough cleanings, she also tends to revert to her native language whenever she becomes visibly anxious.