@KHM_01 he is saying that he will give up his status and join the magic tower. And in exchange, the magic tower will save the country by getting rid of the curse, which saves them from famine and starts to recover their finance. I think by that one year he meant that he will join the magic tower for a year, and that will be enough to save the country.
I absolutely refuse to read yaoi or yuri and I hate bad translations. At least show some effort and write your translations in english.