[en] In the past three years, the LHD [1] has revealed confinement properties as good as those of tokamaks. And achieved beta value of 3.2% has been attained, satisfying necessary condition to be a candidate for a reactor core [2]. However, a fundamental question remains; whether or not such high performance is maintained in a collisionless regime as the electron temperature gets higher. Indeed, the electron temperature remained below 4 keV for the past 3 years as if it were caught in the vicious dependence that the energy confinement time is proportional to T_e^-7/2 as predicted in the neoclassical theory without electric field. This paper reports that a plasma of 10keV was achieved in the 5th campaign of the LHD, carried out in 2001, resolving such a concern and opening a new regime of extremely low collisionality. This regime of high T_e has the features of the ITB and is obtained by achieving special experimental conditions. (author)