A demon and his son live in the mountains. The princess of Ryuuguu castle has a baby. Taikichi, who always gives an offering to the Ryuuguu Abyss, is given a wife and child by Ryuuguu Palace.
Once upon a time, there was a deep 
pool on the outskirts of a village
Había una vez, en un pueblo aislado,
Hace mucho, mucho tiempo, 
en un pueblo aislado,
Foi há muito tempo, no fundo de 
um lago afastado do vilarejo