ヤンデレとメンヘラ〜ヤンデレ義姉とメンヘラ義妹が突然出来たけど日々辛いです〜 (Associated Names)

One day, out of the blue, I gained a yandere older sister and a mentally unstable younger sister-in-law. Living with the two of them, I face incredibly challenging days. However, as I navigate through these tough times, I gradually find myself growing to love their yandere and mentally unstable sides. Embark on this unique journey…