F*nger Addiction, also known as 指瘾【年代弟媳】, is a Chinese web novel that delves into the genres of action, fantasy, harem, mature, romance, and smut. The story explores themes such as bloodlines, family, heaven, incest, modern day life, nudity, secret relationships, secrets, and sibling dynamics. With elements like sharing a body, short stories, sibling care, sister complex, and younger sisters, this novel offers a rich and diverse reading experience for fans of the genre.