
i still don't quite understand what kind of relationship does suha and his family have with the director and the grandma ???

Lol, that's all BS...

Yep. Even if Granny likes Suha, she's not related to him in any way. That commenter's mistaking the name of Suha's late father with the name of Director Park's older brother/cousin who's still alive even if we haven't seen him yet (but his name keeps coming up in the characters' conversation, so his introduction is only a matter of time). That brother/cousin and Suha's dad are two completely differerent and unrelated people.
Should I give it a try??
I haven't read fantasy genre in a while
Highly recommend dude
This is top tier so yes. The plot hasn’t dropped uet
The 9.8 rating is well-deserved. Highly recommended.
Give it a go, you won't be disappointed.
Definitely give this a read but clear your day schedule because once you start reading you won't stop till you run out of chapters.