Yui Aoi

Yui Aoi (蒼井 結衣 Aoi Yui) is one of the two protagonists in Age 12. After Hanabi Ayase started going out with Yuuto Takao, she wanted to find love of her own. Eventually, the boys in her class started playing pranks and lead suspicion to Kazuma Hiyama, a classmate who was usually found to be the source of pranks. After her shower broke down, she has been visiting Hiyama's family bath and lost her late mother's key—in which Hiyama found and Yui started having feelings for him that she later becomes his girlfriend.