A drama with 100% synchronicity with the extremely Ai Sayama is born! While hospitalized, he meets the person he had a crush on in his school days. He is shocked by the unexpected situation, but it seems that he is married and has a family now. He wasn't expecting anything, but... Just then, she blurts out, "Actually, I've been thinking about you." It turns out that they were mutual, and the love that never came true in their school days begins to move forward for one month only.