1. In a bowl, mix soy sauce, mirin, sake, sugar, and ginger. Add the chicken pieces to the marinade and refrigerate for at least 30 minutes.

2. Thread the marinated chicken onto skewers. Grill the skewers, turning and basting with the marinade, until chicken is cooked through.

3. Serve the hot Yakitori skewers with a side of steamed rice or grilled vegetables. Enjoy!