Konapun is a product that Bandai make for kids 8+. It consists of a set of sachets and a small kitchen plastic to make food in by mixing the sashays with water and using the tools in the kitchen. The food food is very realistic miniature versions of the real thing. This food is not edible. Japan loves small cute things and many restraints have plastic versions of their meals in their windows so entice customers. So yes it feels wrong that you can't eat this food after preparing it, but this is Japan and that kind of thing is accepted.
More Konapun on YouTube.