Interesting topic but the potential was wasted. I loved the old guy and Asahina is so beautiful. BUT the acting in this drama felt... fake...? The emotions felt exaggerated or were conveyed with expressionless faces. Also, the writing was boring. Even four episodes felt too much for this kind of dull writing. I just feel the story could've been more realistic and a little bit more daring. I was hoping to see a bigger development in their relationship but the drama focused only on them getting together. I feel like there was a lot more that could've been explored, specially because of the guy's sickness and old age. I wanted to see her move in with him and spend the rest of his days with him. I wanted to see their love til the end and see the person she becomes after everything ends, you know, the impact that it has on her.