"Do you want to be kissed?"
"Push me away if you don't like it."

To avoid moving overseas for her second year of high school, Koko decides to live with her younger childhood friend, Shuri, whom she suddenly reunites with after two years of being apart. Until now, she had only considered him a cute little brother, but once they start living together, Shuri's behavior does a 180. He approaches her as if he's in love with her, whispers tenderly in her ear, and pins her down on the couch?! What is Shuri up to?! Who knows...but there seems to be no way to hold back his dangerously sweet advances!