Synopsis: My first love like a bright sun.

Koharuko, an admired and sophisticated sixth-grader, finds herself the target of immature pranks by some boys, leading her to lose any desire for love. However, when she meets bold and fearless Ichijou, everything changes. Their love story, set during their primary school days, becomes a sensation for the latest generation. Furthermore, the series features additional one-shots, such as "Hatsukare Biyori," "Kimi ni Ai wo Hanataba wo," "Hunny Bunny," and "Only Likey," each highlighting distinctive and moving romantic tales.