Maguroen is a shop in Kuromon Market in Osaka that sells tuna hoe, sushi, and rice bowls. It serves sushi made from different cuts of tuna belly, kamatoro, and rice balls with sea urchin and tuna, and its sets come with rice and several kinds of aged hoe. The shop opens early in the morning, and customers can pick sushi in front of them and eat it in the store or take it out. There is seating for six people at the back of the store.