Cut the chives into 3–4 cm pieces.

Mix the minced natto with the included sauce in a bowl.

Place the steamed Chinese noodles in a microwave-safe container, cover loosely with plastic wrap, and microwave at 600W for 1 minute to loosen.

Heat sesame oil in a frying pan over medium heat, add the steamed noodles, and stir-fry to loosen. Add the chives and stir briefly, then add the natto mixture, ponzu soy sauce, and black pepper, and stir-fry together.