Wow, Rinnosuke has really outdone himself. He made something that Yuka couldn't destroy, would it hurt him to make his shop out of the stuff so that way Marisa can't break the door down, besides the obvious expensive materials it would take.
Don't tell me he used the soccer ball to fix the umbrella.
No, that would necessarily mean he caused the soccer ball to not be the soccer ball anymore. He must have used Nintendium, possibly gleaned from the Nintendium mines in the Finnish city of Nokia.
Nokium-Nintendite alloy nanomachines tend to be good at equipment durability
Shopkeeper... about my requested item...I have just finished perfectly repairing that!Good work as usual! If it's broken again, I'll come and make another request.I've invested all my energy in it, so it will last for 100 years!Huh?BangURGH!BangBangBangKer-Boom!