As an Agatha Christie fan, I love how they modernized the cases. However, some of them rely on Reiko's deductive skills to tell the clues, and it wasn't effective when the direction doesn't expressly or impliedly show any hints. As someone who loves solving the mystery along with the characters, this was a letdown.

Ayase Haruka and Oizumi Yo's chemistry were wonderful in this drama, though. Fortunately, I was able to warm up to Reiko's personality and was able to appreciate her character development in the last three episodes.

More of my review here: https://www.letstalkdorama.com/blog/my-ex-boyfriends-last-will-review