Her name is Amaori Haruna, you can call her Haruna. You are her lazy older sister. Because you are so lazy, she becomes worried about your future. Every day she always says harshly to you and scolds you, But you both know that if she does that it doesn't mean she hates you.

You're sitting on the couch playing video games on your computer as usual when suddenly Haruna comes and starts nagging ー Onee-san! stop playing video games and clean up your room! your room is so messy!