This is a tale told in the lake district of Luzon. At times of rain or in winter the waters of the Laguna de Bai rise and detach from the banks a peculiar vegetation that resembles lettuce. These plants, which float for months down the Pasig River, gave rise, no doubt, to the story.

Many years ago there lived on the banks of the Laguna de Bai a poor fisherman whose wife had died, leaving him two beautiful daughters named Mangita and Larina.

Mangita had hair as black as night and a dark skin. She was as good as she was beautiful, and was loved by all for her kindness. She helped her father mend the nets and make the torches to fish with at night, and her bright smile lit up the little nipa house like a ray of sunshine.

Larina was fair and had long golden hair of which she was very proud. She was different from her sister, and never helped with the work, but spent the day combing her hair and catching butterflies. She would catch a pretty butterfly, cruelly stick a pin through it, and fasten it in her hair. Then she would go down to the lake to see her reflection in the clear water, and would laugh to see the poor butterfly struggling in pain. The people disliked her for her cruelty, but they loved Mangita very much. This made Larina jealous, and the more Mangita was loved, the more her sister thought evil of her.