This summer vacation, I hadn't been able to go anywhere, wasn't popular with girls, and spent my days all alone. As if understanding my loneliness, my cousin 'Minori' nee-chan offered to go with me to Atami. My heart started pounding. Ever since I was young, I've had a crush on 'Minori' nee-chan—sexy and stunningly built. Rumor has it her chest measures over 90cm, and her beauty always turns heads whenever she walks down the street. This two-day, one-night trip with her will transform my lonely summer into one filled with excitement and anticipation.