In Hentai World as Mira Tsubakihara's Relative

Upon transmigrating, Hikari discovers his new 2D world is not what he expected. Lacking familiar elements like Shuchiin Academy or the Service Club, he finds himself in a perplexing and dangerous reality. He is currently staying with Mira, whose best friend is Mrs. Kasumi. His apartment building houses a silver-haired woman resembling a Yuki-onna and peculiar floral motifs. His classmates include class rep Chizuru and three gyarus who frequently suggest parties at his home. His homeroom teacher is Miwa Shirakawa. Notable figures in this world include Sakurajima Miyajima of the Kendo Club, Nanao Akane, the Baseball Club’s manager, and the Sakuramiya sisters from the Archery Club. The adjacent school is Sekai Girls’ Academy. Further complicating matters, Hikari has relatives named Kaiseiri and Sayoko in the countryside, and a NEET neighbor who identifies as a "self-defense force." This world is described as thoroughly disturbed, with pervasive danger and the constant risk of entanglement in bizarre situations. Hikari, embracing the moniker "The Pure Love Battle God, Nakamura Hikari," vows to confront this corrupt world head-on.