Whose Savior Watches Young Ladies Dancing Every Day?

A good-for-nothing young man accidentally awakens the savior system. While watching a young lady dance and saving the world, he chooses to fall in love and execute justice at the same time. "Please don't question my noble personality with your dirty eyes!" "I am the savior who will wipe out all evil!" "Hehehe, my little sister's dance is so white~"