A relative of sachiko who is also a fan of hers arrives at lillian during yumis second year. touko, a member of the drama club, earns the nickname "mechanical drill" from satou sei due to her pigtail hairstyle. initially in the first year, she creates tension between yumi and sachiko.
Despite this, her adopted family loves her like she was their own biological daughter, who adopted her after her parents died in a car crash, leaving her as the sole survivor.Its also revealed that Touko wants to take over the family hospital after her grandfather, but she wasnt allowed to do so yet, due to her young age. She will most likely be given that opportunity at a later date, though.
Touko later wins the second card hunt when she half-accidentally makes Yumi uncover her card, thus winning the date with Yumi. She does so by basically asking Yumi to make her a petite soeur, and the recurring date practically ensures that Touko will become just that.In the same episode, we learn that Touko is also not the real daughter of the Matsudaira family, which made her the target for a lot of harsh words from the other close families.
However, it is apparent later on in the year that she may become Yumis petite soeur.
Touko later wins the second card hunt when she half-accidentally makes Yumi uncover her card, thus winning the date with Yumi. She does so by basicall