Pour the chicken stock into the rice cooker and stir gently.
Arrange the chicken over the rice, skin-side down.
Drizzle the soy sauce and sesame oil over the chicken.
Close the lid and cook using the regular white rice setting.
Once the rice cooker switches to Keep Warm, let everything rest for 10 to 15 minutes before opening the lid.
Fluff the rice gently and serve with the chicken. Garnish with sliced green onions.