In both anime the heroine finds an animal and brings it home. However the animal is actually a boy from another world and has the power to turn the heroine into a magical girl so she can help him with his task to collect jewel seeds or magical seeds.
These two anime titles have almost the same plot, with a girl who knows nothing about powers and one day a stuffed toy visits her. Both the stuffed toys in these anime titles have a male human as their original form. However, Nanatsuiro Drops has a more complicated plot than Magical Canan which makes it not so much cliche of a plot.