I'll make it short and straightforward:

This isn't a happy novel

This a drama focused novel so don't expect fighting and action

The MC got cucked but not the NTR hentai type of cucking so it's frustrating but not as frustrating 

What's you might find frustrating is the MC personality....you just want him to snap for a moment or vent abit but this b*stard is too understanding.

I want to talk about the other characters but whatever i want to say will be a spoiler as there personalitie and stories are the core of this novel.

So is it worth it?

Idk but give it a try

it may seem heavy but really it's not that heavy as the author didn't go in depth to the depressing details which is good and i thank him for that .