is a Japanese light novel series written by light novel series written by Takuma Sakai and illustrated by Asagi TÃ Âsaka. It began publication under ASCII Media Works's Dengeki Bunko imprint in November 2024, with three volumes released as of January 2026.
The series follows Sho Izuta, a first-year student at Tsuna Nagai High School, a school noted for its focus on the sciences. He is also aiming to revitalize the school's Biology Club. He becomes involved with his classmate Rio Iwama after the two decide to investigate a mystery regarding a popular legend at school. According to legend, students who witness two cherry blossom trees near the school form a heart shape will become a couple. However, after reports spread that no one had seen the heart shape in recent times, the pair decide to investigate further. The two, along with the other members of the Biology Club, also become interested in the school's mysteries, aiming to solve them through the use of scientific methods.
The series is written by Takuma Sakai and illustrated by Asagi TÃ Âsaka, both of whom had previously worked together on the light novel series '. It is published by ASCII Media Works under their Dengeki Bunko imprint. The first volume, titled , was released on November 8, 2024. The second volume, titled , was released on July 10, 2025. The third volume, was released on January 9, 2026.
The series was included in the 2026 edition of Kono Light Novel ga Sugoi!, ranking sixth in the overall paperback category and third in the new release paperback category.