A Stir- Fry, and a Load of Japanese Character to it

This mixed vegetable stir fry (asparagus, bell pepper, cauliflower, sugar snap peas, squash) was begging to stay away from the store-bought sauce. For some reason, I do not love the too-sweet taste of some of those, so I tried my hand at the making of my -own- way Japanese sauce, consisting of some brown sugar, ginger, mirin, sake, and soy sauce. It did turn out pretty interesting, especially paired with the buckwheat recently brought from Moldova. Now I have to find out if buckwheat is eaten in Japan- just curious. A handful of seaweed ( love it love it!) topped the crunch- how can one not love it?