From Tokyo Station, take the Joetsu Shinkansen to Niigata Station (about 2 hours ans 15 minutes).
Then, take the Inaho Limited Express to Amarume Station (about 2 hours).
Then, take the Rikuusai Line to Kiyokawa Station (about 12 minutes).
From Haneda Airport, take ANA to Shonai Airport (about 1 hour).
Then, drive about 30 minutes to Kiyokawa.