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.
and the three of them 
lived happily ever after.
Los tres vivieron felizmente toda la vida.
Y los tres vivieron felices toda la vida.
e os três viveram felizes para sempre.