Оріхара Кодама

President of the Tetsuryo Club. A university junior. She usually fills the role of a reliable "big sister" figure to everyone.

She stays busy every day—kindly teaching the ropes to Misaki (a railway novice) and waking up Ushio, who tends to oversleep and run late for meetups. However, she is a true "hardcore enthusiast" with a passion for trains that burns hotter than anyone else's. Once she starts talking about railways, she often gets so fired up that she gets carried away...