Kuro x Koi

Ao works at a local kindergarten, where he has quietly developed feelings for one of the parents, Haizaki-san. His ordinary routine is disrupted when his twin brother, Midori, suddenly visits to announce that he has found a new boyfriend. Given Midori’s notoriously poor track record with relationships, Ao cannot help but worry. After a heated argument over the matter, Midori challenges Ao to see the situation for himself by impersonating him on their next date. To Ao’s absolute shock, the blind date turns out to be with none other than his own crush. The overarching narrative expands through several interconnected stories focusing on the extended circle of characters. "Shiro x Koi" shifts the spotlight to Ao's younger twin brother, Midori, and his blossoming dynamic with Shirase, the older brother of Haizaki Kurose. Years later, the timeline advances in "Aka x Koi," which explores the romance between Shirase's son, Aki, and his childhood friend, Akane, set eight years after the original events. The collection is further complemented by an extra side story titled "Ki x Koi."