[Light novel] I want to decide on the shadow character This is absolutely a positive hand! (1 book)

Publisher: KADOKAWA/Media Factory
Author: 6 tatami mats, Mai Okuma
Size: 105mm x 148mm
Number of books: 1
Language: Japanese
Category: Light novel
Latest publication date: 2023-10-25

Synopsis:
Yanga Eradication system (!?) Love comedy, opening !! Ryosuke Amehara, a high school student, reunited with his former best friend. She grows into a beautiful girl that everyone looks back and---- "The people who are doing Aohal are sly!" ...... In high school life, it was a negative power of dedicating revenge on Yang Ca! Ryosuke will cooperate with "revenge" to fulfill his promises that he had been involved in the past. However, Oriha does not think about the specific revenge content, and the seats are taken away by the sun and wanders around the school every day in search of a place. At that time, I encountered a site where I was doing something. Oriha, who finds a clue to revenge here, decides to stick his head to reveal the nose of the sun! Her poisonous tongue who brushed her shade led to the solution!?