Magikarp Post Renovation

[Doglordo]

I recently looked over quests I had missed and found out that I didn't do the second step of the Magikarp quest where you battle the boy in the slums, however I have already renovated the slums. So am I out of luck or can this step be completed some other way? Thanks in advance.

[Gastronely]

Enter the new building that replaced the slums, and talk to the black kid with the pink cap

[DelRad]

17 hours ago, Gastronely said:

Enter the new building that replaced the slums, and talk to the black kid with the pink cap

How do you get there though the stairs are blocked

[Doglordo]

2 hours ago, Gastronely said:

Enter the new building that replaced the slums, and talk to the black kid with the pink cap

Didn't even see him, thanks!