Kana is Kokoro of her favorite subordinate, Hashimoto, who is getting married. In an attempt to light a fire in their newlywed life, she orders Hashimoto to work overtime. When they are alone in the office, Kana tries to seduce Hashimoto. Hashimoto, who is rumored to be out of reach at work, gets so close that he can almost feel her breath on him, and he is helpless and falls for her. Meanwhile, Kana's chemistry with him is better than she expected, and she ends up getting sucked in, even though she only just thought it was a fling. The female boss and her subordinate have found the best sex partner, who feels way better than their partners, and their bodies are throbbing with desire, even during work!