When I read the novel at first I can't understand why lust clan was translated into lust clan cuz the characteristic of lust clan seems to have no connection with lust at all, and I think it's a translation mistake. Actually it should be translated into tune clan or sound clan or any other word related to sound, according to the fact that the leader of the lust clan played instrument to attack and Chun Wonryou used her musical wave energy to hear what was happening. And now I know why it is lust instead of sound in the novel cuz lust and sound share the same character in Korean so the translator confused them╮（﹀＿﹀）╭ (sorry that I am not good at English so I may have made some grammatical mistakes)

you can think of year as a quantifier of internal energy. more years, more power.

mado is the transliteration of demonic, and it means yes here