As Tsubaki Uehara's daughter, Anzu Uehara forms a single mother-daughter household. She co-cares for Plum, Kinokoinu's sibling mushroom creature characterized by white and purple hues. Anzu actively encourages interactions between Kinokoinu and Plum, observing their behaviors to foster connections. Her efforts bridge her family with Hotaru Yuyami, overcoming Hotaru's initial reluctance toward Tsubaki. By integrating Hotaru into a mushroom creature-centered community, Anzu expands his social circle and aids his gradual emotional recovery.