Delta to Gamma no Rigakubu Note

Delta to Gamma no Rigakubu Note
First light novel volume cover
デルタとガンマの理学部ノート
(Deruta to Ganma no Rigakubu Nōto)
GenreMystery
Light novel
Written byTakuma Sakai
Illustrated byAsagi Tōsaka
Published byASCII Media Works
ImprintDengeki Bunko
Original runNovember 8, 2024 – present
Volumes2

Delta to Gamma no Rigakubu Note (デルタとガンマの理学部ノート, Deruta to Ganma no Rigakubu Nōto) is a Japanese light novel series written by light novel series written by Takuma Sakai and illustrated by Asagi Tōsaka. It began publication under ASCII Media Works's Dengeki Bunko imprint in November 2024, with two volumes released as of July 2025.

Plot

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.

Characters

Sho Izuta (出田 樟, Izuta Sho)
A first-year high school student who is interested in biology and plants. He has an introverted personality, but this begins to change after befriending Rio Iwama. He is nicknamed "Delta". He has been friends with Ryuichi since elementary school.
Rio Iwama (岩間 理桜, Iwama Rio)
A fellow member of the Biology Club. She is an popular and intelligent student who is interested in mysteries. She loves science to the point that she likes to use it in solving mysteries.
Ryuichi Mizusaki (水崎 隆一, Mizusaki Ryūichi)
Sho's childhood friend and a fellow member of the Biology Club. He is interested in chemistry. He and Sho were both members of the Chemistry Club when they were in junior high school.
Rei Kannabi (甘南備 麗, Kannabi Rei)
A student with a boyish appearance and a cool personality. She is interested in Japanese.
Aya Mikage (御影 綾, Mikage Aya)
A student skilled in mathematics, who has a calm personality.

Publication

The series is written by Takuma Sakai and illustrated by Asagi Tōsaka, both of whom had previously worked together on the light novel series Butareba: The Story of a Man Turned into a Pig.[1] It is published by ASCII Media Works under their Dengeki Bunko imprint. The first volume, titled Yotte, Hatsukoi wa Shōmei Sareta. (よって、初恋は証明された。), was released on November 8, 2024.[2] The second volume, titled Kono Seishun ni, Bekkai wa nai. (この青春に、別解はない。), was released on July 10, 2025.[3] The third volume, Totte Oki no Ronri o, Kimi to. (とっておきの論理を、君と。) is scheduled to be released on January 9, 2026.[4]

No. Release date ISBN
1 November 8, 2024[2]978-4-04-915646-1
2 July 10, 2025[3]978-4-04-916228-8
3 January 9, 2026[4]978-4-04-916716-0

Reception

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.[5][6]

See also

References