Dan's book is a travesty, which sucks because he was a good character in TigerNao's story.
Im someone who loved the dramas more than the books tbh, the writing is questionable, have same pattern of evil bitchy womens in most of these books, i side eyed it, the last book didn't need that age as you said, it was just weird as hell
This story and othr twin one were my least favorite of book serie, the drama lived to the book btw, maybe some changes that were made i find them better not adapted bcz they add nothing
Bcz shrimpie didn't wish to survive, he decided to die but he didn't and ended up paralyzed, he feel burden
He know hailou exposing archives is huge mistake, he wanted to save bcz thats how they lived whole time, he would cover his mistakes and get him out of problems, he sacrificed himself to save him, it was his honor death to save his brother, him surviving was depressing fact for many reasons you will see in further episodes, i dont want to spoiler