nuclear decay
meadow, original, primitive, field, plain, prairie, tundra, wilderness
ゲン / はら
child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac
シ / こ
nucleus, core, kernel
カク / —
crumble, die, demolish, level
ホウ / くず.れる
demolition, break, destroy
カイ / こわ.す