Despite being a first-year high school student and the same age as her peers, Mei Ikeda had never experienced having a boyfriend. She expressed her worries, exclaiming, "I thought I'd find someone in high school!" That was until a stunning senior named Sakuraba-san approached her and unexpectedly confessed, "Please go out with me!" Without hesitation, Mei impulsively agreed to date him, but almost immediately found herself overwhelmed with excitement as her heart raced with anticipation. This marked the beginning of her first thrilling romance with a slightly partial boyfriend.