Every day, Sakura resolves to climb the slope outside her school, but it proves to be much more challenging than she expected. On the brink of giving up, a boy passing by inspires her to push through. After some digging, Sakura discovers that the boy is none other than her new teacher, Fujiharu Keisuke. This heartening encounter is included in Volume 5 as a one-shot called "Imouto no Iede."