Transit Girls EP7, Yui and Sayuri’s parents, Madoka and Keigo wanted to know their relationship. Keigo questions to Sayuri, who remained silent, and Yui tells that she is serious. The next day, Yui disappears.
Transit Girls EP5, Being questioned by Yui, Sayuri noticed her feelings and kissed. Yui speaks to herself that their relationship between Sayuri became closer. Sayuri later confessed confess to Nao and Mirai on how she is feeling now.
Transit Girls EP4, While Sayuri is asleep, Yui kissed her. Sayuri noticed it and in the next morning they result in awkwardness. Sayuri goes to her neighbor’s house instead of her home which Yui doesn’t know.