Kodomo no Mikata

From MangaHelpers:

Odagiri Shindo and his daughter Moe run the toy shop "Daidalon," which often struggles just to break even. Shindo is an enthusiastic, if not very business-savvy, man, who likes to dress up as the hero "Shindo-man" for his store. Moe is a much harsher, less easygoing shopkeeper. While she's often exasperated by her father's antics, she sometimes ends up cooperating with him! [tethysdust]