Mio Saeki's demure facade fades away once she enters the Japanese prep room. The sight of squid sticks turns her into a lively conversationalist, discussing horse racing like an elderly gentleman. Only Shirokawa, her teacher, catches a glimpse of her true character. Although he enjoys teasing her mercilessly, they share an extraordinary connection. Mio is even enamored with him. This is all showcased in Volume 4: Futari no Houkago.