YuukiTakamiya
"Big brother, why is the world cruel to us?"
"Don't worry, Nunnally. This world can go burn for all I care. As long as you're safe, that's all that matters to me."
"I swear. As long as you're happy, that is all that matters to me."
"But what about your happiness, big brother? I also want you to be happy."
"Your happiness is also my happiness. Your big brother will take care of everything."
Two orphans were forsaken and branded as children of traitors, Elpis and Nunnally, were forced to live in extreme poverty, until they were adopted by a tailor named Aglaea.
From there, Elpis decided to work hard for his little sister's happiness and to do that, he needs to change a kingdom whose value depends on one's magic and its deep and rotten corruption.