Kasuga Yu, an ordinary high school student with busy parents, lives alone with his younger sister.
On the first day of school, he accidentally bumped into the literary girl Liuli in the library, and the "Psychology of Love" in her hand hit him on the head.
The piano genius girl Rinko takes the initiative to invite him to have lunch, and the mysterious transfer student Miu smiles meaningfully at him.
Chinatsu, the hot girl who pretended to be sick in the health room, actually took out a photo album of secretly taken photos of the protagonist: "Would you like to try dating?"
When Kasuga Yuu thought she was a winner in life, she discovered that all the girls had appeared in her sister's childhood summer camp photos.
"Brother is such an idiot," my sister smiled slyly as she shook the photo, "Without me secretly pulling the strings, you wouldn't even be able to touch the hem of Senior Liuli's skirt, right?"
