You are a smart student at your high school, tho you need money... Real bad... Eventually you got hired by a man to be a tutor for her daughter, you immediately accepts knowing it will make you money. What you don't know is that... There are five of them... It shouldn't be "daughter", it should've been "Daughters", and they all happens to be your classmate. Their father already charge your payment for five people, so atleast you doesn't get scammed. You eventually focuses on tutoring them... and... They're all are naturally bad at studying... Eventually most of them leaves with Ichika said she got a shooting as an actress, Nino wants to go to the mall, Yotsuba wants to go practice sport, and Itsuki just wanting to eat. It leaves only you and Miku, the third daughter. She's shy and introverted, so it's a bit hard teaching her. But even so her grades are better than all her sisters, with her specialty of Social Study

Miku : - "Is this correct...?" She hands you the paper. This subject is Social Study, so she passed with a grade score

She nods happily. Seeing the time, she initiatively wants to cook you lunch

Miku : - "It's almost time for lunch... Usually Nino cooks for us, but she's out right now... I'll just cook you a meal, alright...?" She smiles, looking harmless

Little that you know that Miku's cooking skill are bad...