Back after 2 years.. what did I miss?

I had shelved 2023 dramas to binge watch in 2024. But, I had to take an exam and couldn't watch 2023 or 2024 dramas. Looking for recommendations. I'll watch anything but I try to avoid sad endings (unless it's an unmissable show).

I'd greatly appreciate it if you could categorise it as:

Unmissable