Mr. Plankton does have several heart-warming moments but it's mostly a story of a group of people fighting for a chance at happiness even when the odds are against them. Sometimes life gives you lemons and no matter how much sugar you add, you still are left with a bitter aftertaste.

But the story is not about the end but rather the journey. Hae Jo, the ML embarks on a journey and drags Jae Mi, the FL along. He is annoying and you want to hate him but just like Jae Mi, every time you end up just pityjng him. He is a man who actually cares a lot but feels like he has to act like a jerk. He's not just trying to protect other people but also himself. And you're forced along for the ride because he can't stop fighting himself every step of the way.

The show is best watched when you aren't emotionally vulnerable yourself because it deals with some difficult topics related to health and abandonment. Unless you need to cry in which case, it might be a good watch.

On the positive side, there are many sweet moments, a decent dose of romance, action, some moments that will make you smile if not laugh and fill you with hope.

The actors have really done a great job and the cast is fantastic.

Personally I won't rewatch this because of the themes but it is a good show and definitely recommended.