Mio is a 21-year-old who works as an instructor at a computer class, primarily teaching elderly students. She is highly regarded for her gentle and meticulous teaching style, catering to everyone from beginners to advanced learners. Recently, she's become obsessed with social media, showing clear signs of dependency. There are also rumors she's developed a close relationship with a man she met online. For this special New Year's event, she appears dressed in a traditional kimono.