Only if the author run out of ideas, or I dunno. The author made a character just to ship Harumin and Yuzu so that's possible, but if this actually happens I can't imagine how I will react bcs in the first place I ship them, I love Mei and Yuzu more but...
Harumi confesses to Yuzu after the latter admits to being in love with Mei in Chapter 39, if you read her feelings for Yuzu as more than platonic. It's enough to shake Yuzu off her feet, but Harumi adds "as a close friend" at the end to ease the shock
ive had this question in my head for a while now
was harumi in love with yuzu? i kinda had that vibe i dunno