First, great casting! They played their role well but hats off to the ML..He's doing the great job in portraying the role of the Adult.and Teen version.. I know he's a great actor as I've seen him many times but this series he really pull-off the character.

At first, I thought it would be a magic or fantasy as they gangster died I feel the switch as magical. However, it just part of the story. Other than, the moral lesson is clear.

1. Don't judge by its cover - Sometimes gangster has softhearted too. Don' generalize the word " gangster"
2. Bully can lead to more serious situation - Don't bully
3. People can change if given a chance at the right time and with the right people.
4. Parent must guide their child not prohibited.

Humor - the humor really balanced the story.

Overall, good ending as we see that really happen in the end. The character portrayal is really good and adding the humor balance the story.

No doubt why it went viral. Satisfied and never regret trying to watch as I finish the series in one sitting..