Uthaitaewee.

When Naga princess Suwanmala falls in love with a tree god who saves her, their forbidden romance ends in tragedy. Forced to return to her kingdom while pregnant, she entrusts her egg to the forest, where fate leads it to be swallowed by a toad. From the toad’s death emerges Uthaitaewee, who is raised by a kindly old couple and destined for an extraordinary journey.