SHKD-876 Oh, Fuck It All. My Little Sister-In-Law Laid A Trap For Me

Since childhood, Saori (Kiki) has been feeling inferior to her sister Ayaka (Orikasa), who has a good appearance and a good personality and is loved by everyone. Now that she lives away from her sister, her life has become rough, and she has lived a self-deprecating life with Katsu, who lives with her in Nariyuki. One day, Saori, who was informed of her engagement by Ayaka, was furious at the difference in circumstances with her and turned her distorted emotional blade toward Ayaka.