Make the Soft Egg: Bring a pot of water to a boil, then turn off the heat. Gently place the eggs into the water, cover with a lid, and let them sit for 10 minutes.
Boil the Okra: Cut it into bite-sized pieces and boil them in hot water for 1 minute.
Grate the Yam: Peel and carefully grate the yam using a grater.
Mix the Natto: Open the natto packs and stir the beans well until they become nice and sticky. Add the included sauce packets and stir again briefly.
Assemble the Bowl: Scoop cooked rice into serving bowls. Layer the natto, boiled okra, grated yam, and soft egg on top. Drizzle with sesame oil and soy sauce, and sprinkle toasted sesame seeds for extra flavor.
Notes
Stir the natto until it becomes foamy and sticky to distribute its flavor in the bowl evenly.
Add a little chili oil or shichimi togarashi (Japanese chili spice) for a spicy kick.
Drizzle with ponzu sauce or squeeze fresh lemon juice for a refreshing flavor.
Try adding toppings like kimchi, avocado, or raw tuna (great if you enjoy sushi) for extra variety and flavor.