Tomo
Tomo is Ai’s eyeglasses-wearing senior in the university and later on Ai’s love interest. She is presented as mysterious, carefree, indifferent, and irresponsible since she only attends her classes only when she wants to. She first met Ai on the entrance ceremony when she approached her to borrow her lighter. She also borrows Ai’s notes since they share one class together. Since then they meet regularly to smoke together and drink coffee in a cafe. She loves coffee, books, and libraries. She likes to read and study for knowledge but she doesn’t feel the need to graduate which Ai finds worrying and irresponsible. Her father had remarried and so she has a young half-brother.