Responses
Try looking for the amnesia tag. You might be able to find it.
Ff
Punch up?
Following!
Its not Punch up T^T
sorry ff
I just remembered that thw story starts with a cp having been in love for a long time. The seme is 2 or 3 years older than the uke. Maybe they have sex. The uke is still a student and seme goes to eork already. After that, for some reason the uke got his head collided and he forgets the love between them (I am not sure if the uke forgets the seme or not). The doctor said that maybe the uke had psychologycal illness so that he forgot things he didnot want to remember. At that time, the seme realizes that their relationship maybe has some problems.