Kanzaki, Mayu

神崎真由

She is Ōtani's ex-girlfriend. She bears a strong resemblance to Chiharu (or vice versa), which is likely one of the main reasons Ōtani developed a crush on Chiharu. They began dating in middle school, during which time she served as the manager for the school basketball team. She ended the relationship, leaving him utterly heartbroken, because she had fallen in love with someone else who happened to be very tall.