University nurse Mizuki finds herself caught in a web of romantic and sexual tension as she navigates her growing attraction to the mysterious Kirishima. While Endo attempts to win her heart following his own breakup, Mizuki's conflicting desires lead her into several passionate encounters, eventually culminating in a secret tryst with Kirishima. Meanwhile, Endo finds his own unexpected solace in the arms of an intern, Ms. Takeuchi, after a night of drinking.