Konkatsu Monster: Haisupe Kareshi ni Shuuchaku suru Yabai Onna

Akane (29), who has devoted her life to work and hobbies, hit it off with Izumi (27), a beauty salon employee, at a matchmaking party. They became friends and started attending matchmaking events together. Izumi seemed like a sociable and lovely person... but her true form is an ultra predatory “dangerous woman," greedily sharpening her claws in search of other people's boyfriends to be her prey! She looked down on Akane's partner, Daiki, saying he's unattractive with a low income... but when she finds out that he is actually a high-spec man, her attitude changes drastically. She reveals her true nature, saying, "Maybe I'm the one worthy of him..." (Source: viviON, translated)