A white snake becomes a daughter.  Two snails cook dinner for a pair of brothers.  A blue tengu and a red tengu get in a fight.
Actually, we're the pond 
snail sisters you saved.
La verdad es que somos las hermanas
 caracoles a las que salvaron la vida.
La verdad es que somos las hermanas 
caracol a las que salvasteis la vida.
Na verdade, nós somos os 
caramujos que vocês salvaram.