Pou needs you in this game because he has lost his hearing and you will need to fix him.
Pou will need your help as he has partially lost his hearing in this ear doctor game and you will need to step in and save the day once again by taking a look at his ears.
You will need to help our friend because not hearing well really is a bummer and he will not be able to enjoy himself playing with all of you guys.
Your job will be to take your tools and start using them because with their help you will definitely be able to make Pou feel better and start customizing him and playing some cute puzzle games with him.
Show him you are a great doctor and treat him for free as he will be your best friend from now on.