Mochizuki Rumi, who debuted in the MUTEKI, makes her first Madonna appearance! Rumi has to work part-time at the cafe where her girlfriend works, replacing her younger sister who has been on maternity leave. Due to her experience as a gravure idol and her natural goodness, she quickly got used to her job... One day, Oki, a man who was a fan of her at the time, applied to work part-time at the store. The excitement that emerges in front of her, a girl she once admired, can't contain her urge to smoldering inside the tree...