Yuunagi Kazuma and a (Self-Proclaimed) Magician’s Secret Tool, also known as 夕凪和真と（自称）魔法使いの秘密道具, is a Japanese web novel that falls under the genres of adult, comedy, ecchi, harem, mature, romance, school life, and smut. The story revolves around the protagonist Kazuma and a self-proclaimed magician, exploring themes of humor, romance, and mature content.