Four slice-of-life omnibus stories. The Rain and a Cat: On a Sunday, Reki, Langa, and Miya head to the skatepark as usual, but a sudden squall catches them off guard. They return to Reki's place and begin playing Karuta, a Japanese card game they seem to have found! Becoming Really Serious About Things: In the past, Sakurayashiki and Nanjo spent their high school years in relative obscurity. They often clashed and competed, but what might come of all this rivalry remains unclear. Morning Routine: This story explores the everyday life of Ainosuke and Kikuchi. It focuses on their hidden moments, occasional overlaps, and a moment that seems to be drawing nearer. Hiromi, Do Your Best!: Shadow is an anti-hero at night, but this three-part slice-of-life flash story reveals his noble and kind side as he works hard at a flower shop during the day.