F1 hybrid medium late maturing variety from Japan, best sowing time is mid August in Yangtze River valley, harvest in February, come to the market in slack season, dome head shape, dark green, small beads, medium up-right, closing planting, each head weighs 0.50-0.75kg, very high yielding, good resistant to cold, it is the rare late maturing variety, and also the perfect variety which never turn purple in low temperature.