Cut the beef into very thin slices. Also cut the carrots diagonally into thin slices. Cut the spring onions and onions into thin rings. Puree the nashi pear and garlic in a blender.
For the marinade, mix the soy sauce, sugar, honey, sesame oil, garlic, Nashi pear, pepper, sake, rice vinegar and chili powder.
Put the meat, carrots, spring onions and onions in a large bowl and mix well with the marinade. It is best to let it steep in the refrigerator for a few hours.