The park has 3 areas, make sure you check all 3, you should meet a new girl or something
I had the same thing. Asking me to take a stroll in the morning.
The character that was here was for the easter eggs one.
I found 12 of them but the "ce1" (looked variables) was missing.
After bypassing it and completing the quest to the bunny, MC quest change to "No quest available".
PS: Where is "ce1"? >.>