Marinate boneless pork butt in aprox 1/3 cup soy sauce, 1/3 cup saki, couple of tbsp. garlic, ginger for up to 24 hours. In 8qt dutch oven put chopped carrots, onion, stems of bok choi, sliced daikon, chopped garlic, grated ginger, pork, soy sauce, saki and water. Bake 375 until pork is fork tender. Put dutch oven on stove remove pork to chop up add leafy part of bok choi frozen or steamed broccoli and peas. when leaves wilt add slurry of water and corn starch(or tapioca or arrowroot) with a few dashes toasted sesame oil when thickened add pork back in serve over hot rice