Ritsu is willing to do anything for her best friend Ichika, including the intimate act of cleaning her ears. But when Ichika starts dating a boy, Ritsu realizes that she wants to be more than friends. Will Ichika push her away when Ritsu reveals her innermost feelings? (Source: Seven Seas Entertainment) Included one-shot: Apron

Toumei na Usui Mizuiro ni was published in English as Transparent Light Blue by Seven Seas Entertainment on April 4, 2019.