A woman wants a drug to slowly kill her mother-in-law. An old man is terrible to his servants, even when those servants are monsters. A frog from Kyoto and a frog from Osaka visit each other's cities.
The mother-in-law drank 
the medicine every day.
La suegra siguió tomando
la medicina sin faltar ni un día.
La suegra siguió tomando
la medicina sin falta ni un día.
A sogra bebia o remédio todos os dias.