Houkago Teibou Nisshi放課後ていぼう日誌; Afterschool Embankment Journal; Diary of our Days at the Breakwater; 방과 후 제방 일지; 放学后海堤日记; 放學後堤防日誌; Дневник наших дней на волнорезе

Hina Tsurugi is a first year student at a coastal high school and regards herself as an indoorsy sort of person. Walking along the embankment, she runs into an older schoolmate, Kuroiwa, who invites her to join the