Senior Sister Is from Mount Fuji

Do you think my senior sister is overindulging and is a doting brother? I just like it! Do you think my swordsmanship has a bad reputation and is a useless technique? But I don't believe in evil! The next three swords are designed to kill the most greedy, extremely evil, and heartless people. Greedy for money, lustful, and upright. He hates evil as much as he hates it, and he has the world in his heart. Wait for me to sprout~ Wait until I grow up~ Wait until I swing my sword~ Wait until I get home~ They are all robbing this world, give it back to its true owner, okay? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.