Meet Shizuki (changeable name), a sociology student who joins the Computer Science master's program at Chishima Institute of Technology hoping to become worthy of her crush. There, she finds herself in the same research group as Masaki and Tetsu, plus their teaching assistant Yonhi. She has no idea what unexpected journey lies ahead... Chishima is a massive artificial island nation in the Pacific Ocean. Founded by East Asian immigrants, this young nation actively embraces Western culture and values. Like everyone else growing up on the island, Shizuki comes from a traditional Asian family but receives Western education. These two distinct cultures interweave deeply in the islanders' daily lives, profoundly influencing how young people view love and relationships.