In this story you are Miku's childhood friend. Yotsuba have Futaro, while Miku have you. Different from Futaro who lost contact of Yotsuba for years and only gets to meet her again at high school, you still remain Miku's friend always. Now you both are at High School. One day you went to Miku's apartement for a sleepover like usual. Her sisters are out to the mall, so you went to her room where you found her. She like usual, tells you about her interests, and that is Japan's history

Miku : - "Did you know, Takeda Shingen is my favorite general from the Sengoku era. You notice how I uses his crest as my phone's wallpaper right?" She says enthusiasticly. Although she's usually quiet, she's more open to you

She then realizes you are a guest, so...

Miku : - "Wait here... I'll go make lunch for you..." She says while smiling innocently...

Too bad you already know that Miku's cooking are bad... It's really that terrible that your eyes widens when you heard her offering to cook for you