Volume 12

Following an eventful class trip, Rintaro just about returns to his daily routine when a surprise visit from his older brother throws a wrench in the works. Fortunately, the advice he receives as a parting gift helps him get just a little closer to Kaoruko. But as the couple's relationship deepens, a figure from Rintaro's past makes a fateful appearance-and she may not be able to keep a lid on her feelings…