I think it's time to admit that some types of mature romances aren't just for me. This was the case with this show.

Miyata Akihiro, a sincere and diligent editor of a business magazine by chance gets to meet his first love, Iwanaga Takashi while working on an article. However, he is still haunted by his previous experience as a teenager with the untouchable Iwanaga sensei, who had bet on their love. Now, as adults, Iwanaga once again expresses his interest in Miyata-san, who is determined not to fall for the easy-going Iwanaga-sensei again.

The characters, particularly Miyata-san is the reason I held on until the end. He was careful and cautious with his words and actions. I was never once annoyed or angered by his choices.
As for Iwanaga sensei... I have no idea about him even after the end. There was so much more to him than what was being shown, but I just couldn't feel anything for his character at all.
I enjoyed the flashbacks, but they seemed incomplete to the story, inspite of giving some glimpse into their past, particularly Miyata-san.
Both the actors nailed their roles, and the overall atmosphere of the drama was pleasant.
It seems to be one of those dramas, which I feel had a lot of potential, but somehow managed to miss me.