Nanatsu-iro★Drops EP12 - The First Love is Seven-colored

With Masaharu's memory on a half-year reset, his life returns to how it was before. Sumomo, now feeling depressed, is visited on the Gardening club by Masaharu, who, moments later, gave Sumomo her bandage after she gets injured from the sprinkler (the same bandage Sumomo gave to Masaharu on their first date). Later, she is encouraged by Nona, who then offered a medicine (made from the stardrops she had collected) to restore Masaharu's memory. Sumomo, however, decides not to use the medicine, and clings to the promise she and Masaharu had made. Meanwhile, Masaharu wanders around town visiting the places where he and Sumomo had spent time together (probably in an attempt to remember something). After going to the merry-go-round and vivid flashbacks, he returns to the school greenhouse. Masaharu finds Sumomo on the secret place Sumomo had shown him. Though having no recollection of previous events, Masaharu tells Sumomo he will love her once again, hence fulfilling their promise.