A beautiful young girl left alone in the mountains, surrounded by perverted old men who pleasure her day and night, forcing her into outdoor breeding sessions. Repeated brainwashing and sexual training turn her into an obedient pet, until she can no longer feel shame but instead finds pleasure in the depths of depravity.

大自然の山里に放たれた1人の美少女。変態オヤジ共に朝から晩まで弄ばれ夜通し野外種付けをされる。繰り返される洗脳調教でペットと化した女子は言われるがままに身を委ねいつしか羞恥は快楽へと変わり快楽の深淵と堕ちていく。