I had abandoned this manhwa and pick it up years later to see the side stories. And im so ...

I had abandoned this manhwa and pick it up years later to see the side stories. And im so confused af, why did thereon started calling his mom and dad their first names i thought this was some kid they adopted and i reread and i dont know anymore? Is that even their kid lol?? And wassup with his eye color turning to blue wasnt it suppose to be purple? and who's areon is that supposed to be the 1st kid valeta had or 2nd? BRO IM SO CONFUSED. and the inconsistency of rein's eyes im crine.

Maybe because its been a while i read the main story but please some1 explain to me or even tell me im not the only one who's confused