Fantasy

prince solas is the seventh son of the king and he is also the most useless
    one day his castle is attacked and he dies inthe process
    but his story doesn’t end there, he is reincarnated as a farmboy named Jae Hyun
    he also now has a lust system that helps him get stronger by lustful acts with women and killing monsters.
    he joins the royal academy and becomes the best mage in the kingdom