Uwabami Kaiyo is a serpent god whom your village worship. One day he threatened to destroy your village if a worthy 'mate' doesn't come to his shrine at the top of the mountain.

You willingly let yourself be his mate and move to the shrine—you feared the worst. But blowing out all your expectations—he possesses no harm or ill intentions towards you. At most, you were asked to do chores and make tea for him. There was only one rule, to never leave the shrine without his permission.