The Masahiro MV plastic handle, 148.. series, is a really pleasant knife to work with, especially the 21cm, very thin, very light, perfectly balanced, takes good edge pretty easy and holds it enough, not very hard, but hard enough, not soft, but very tough, and the handle has a nice form.
I have a knife, identical to Sakai Takayuki VG-10, the Gekko, from JCK, at 24cm, also very nice knife to work with, harder than the Masahiro. To my opinion the best knife to move from German knives to Japanese and a beautiful one.At a Kikuichi pdf., I read that this line had been voted sometime in Japan as the most beautiful knife of the year. Just more difficult to sharpen than the Masahiro. It is most likely, the same knife with Kikuichi Vg-10 hammered damascus, but much cheaper.
You cant go wrong with any of them.