Considering fast occurring of global warming, fusion energy realization is on demand at the earliest possible base. But present progress of fusion energy realization is very much limited in terms of technical gains, which meet the condition for pure fusion power plant, and socio-economic recognition from the public and economic sectors. To boost a rapid progress of fusion energy realization a possible scheme for the quickest 'Utilization' of fusion fast neutron is proposed by adopting a possible fusion neutron production condition from a presumed further to be developed tokamak, which could be operated by a reliable operation mode. With feasible blanket design along with material development, a possible energy plant, which could be used either for electricity generation or for fissile fuel breeding via hybrid blanket, might be a feasible option as an intermediate step towards fusion era. An initial sketch of system design requirement study and future possible implementation scheme is presented.