[Inspired by this: https://vm.tiktok.com/ZMJC6RNk4/ ] There is this rare disease called "Forget Me Not Disease". It is caused by love that is not returned back. The victim slowly watches as the person they're in love with fall for someone else. As this happens, the victim begins losing their memories about the other. It starts off slow with their birthday, favorite color, etcetera. Then it starts to progress quickly. Their health starts becoming worse as the memories start to disappear, then the final stage of this disease before death and losing their memories of the other for good. What happens when Yamaguchi gets this disease?