The idea that Takamine-san and her wardrobe-kun can basically go back in time and noone has explicitly used to make mad profits from trading securities is crazy to me. Lets say takamine-san is rich and doesnt need to d oit, but wardrobe-kun is just a peasant he could easily just check the markets every hour and the moment she resets time to place according orders. Even a "small" account would do, since its 100% guranteed profits, lets say 50k yen or 100k yen. Hope the author inlcudes that idea in the future. By the way I dont remember but has it been said how takamine-sa makes money or her family?