While most people were obsessively discussing Batman's subway rescue, Luke had returned to a normal life.
He kept quiet about how he and Max had made the cupcakes.
Actually, the hundreds of cupcakes weren't made by him, but had been mass produced by his smart kitchenware.
He had switched out some materials via his inventory. Luke couldn't use his high-end materials for things like the cups for the cupcakes; he could only use Max's regular materials.
In any case, it took nothing more than a thought; Max had been too busy "making cakes" with the clone to notice.
After the smart kitchenware was done preparing the cupcakes, Luke threw them into his inventory, and his clone took them out and placed them in the corner of Max's place where she made her cupcakes.
From beginning to end, he only carried out the entire back-and-forth process twice. He wasn't tired at all.