The roommate who shared the house treated the 50-cent absorbent bead toy as if it were his own, and even risked his life for it. In her previous life, Lu Yanyan tried to dissuade her by talking about science, but was resented instead. After rebirth, facing his sister-in-law's unreasonable troubles, the protagonist no longer argued, but fully cooperated with the performance! Do you want to treat toys? Let me help you get in touch! The toy is broken? Congratulations on becoming a grandma! The protagonist works step by step, using humor and wisdom to push the absurdity to the extreme, trapping the unreasonable family members in the web he weaves, and finally achieves a perfect counterattack.