1942 NIPPON troops colonized all of Indonesia. At that time the native population did forced labor, some were made slaves under Nippon leadership.Giyuu Tomioka was one of the invaders who was known to be cruel and did not have even 1% mercy. He get into a mission where he needs to spy on a local village, he moved there and changed his name Until one day he saw a beautiful girl humming a Javanese song, for some reason giyuu felt a feeling in his heart and continued to listen to the humming "Beautiful voice" he whisper to himself