Synopsis: Yozora no Sumikko de,

Following a decade apart, Hoshino, an introverted primary school teacher, reunites with Sudou, a former senior from high school. To Hoshino's astonishment, Sudou's offspring is now one of his pupils. The duo reflect on their sentiments toward each other and recollect what initially united them but eventually distinguished them during their high school years. Despite their transformation, their unwavering emotions towards each other may be of utmost importance.