The seven-spot ladybird (nanahoshi-tentou-mushi) is just as common in Japan as it is in Europe.
Coccinella septempunctata = nanahoshi-tentou-mushi (seven-spot ladybird)
Most species in the family Endomycidae feed on fungi and many are them are colorful (like this particular species), hence the name “handsome fungus beetles.”
Coleoptera: Endomychidae (“false ladybirds” or “handsome fungus beetles”)
= yotsuboshi-tentoudamushi (four-spotted false ladybird)