The Search for My Maid Within a Succubus Book

Wrapped in the light emanating from a mysterious book, the protagonist finds himself transported to a world of succubi! In this world, lustful succubi abound, and lewd battles are the norm. Just as he tries to escape, his childhood friend—a maid—gets kidnapped by someone... Will he be able to save her, or will he fall victim to the succubi's seductions and temptations?