"Hot young blood" is a teen-flick- an action-romance movie about enmity, rivalries, love-triangle among the young students in the early 80's in the countryside of South Korea. They seemed to be hot-tempered so often rival groups of boys and girls were engaged in fighting. The hero was a playboy and the heroine was a female gang-leader.
At some particular scenes it has portrayed landscape of village which was eye-soothing. And the soundtrack was also good. The lead actors and actresses did their best but continuous sanguinary fighting and conflict just for "my girl" and other tiny issues was not adorable to me. Severe punishment of immorality was also expected. However sometimes this movie managed to uphold teenage psychology which involves the reluctance to follow the straight path and courteous manner for having "hot young blood" .
It's got a subtle similarity with another box-office hit Korean movie "Sunny (2011)" - both the movie focused on the same period and clashes among hot-tempered teenage people yet " Sunny" was a movie involving much deeper emotion and friendship. And I believe, most of the teenagers even in today's restless society don't possess such hot blood and they are more considerate in cherishing friendship to lead a better future rather than creating such enmity among them! :) .