Grow up please!!
This feels so wrong, I can't even ship you two. I know that the older guy just feels an attachment and not "love" yet but still if he gets to see him growing in front of him, that's Grooming. Just go to another country, grow TF up, get at the actual age with your body and then come back and pounce on your older bf. Blushing at the age of 14 on a man 20 years older than you? Become your boyfriend's sugar daddy atleast. Get rich or rob your dad.
Everything was going great but suddenly with so many skipped arcs and missing plotline, it fell messed up. At first he was collecting fragments for his child and then suddenly it's for his husband in original timeline?
Adapting a novel into a manhua is great but atleast use the plot properly. Not half ass through it.