It seems to be a common occurrence that people on their death bed suddenly "realizes" their wrong doings to their children and now wants to reconcile before their death. I fucking hate this shit, both in real life and in fiction since a sorry doesnt magically make the lifetime of neglect and abuse to the child suddenly disappear
i think the one that sent the letter is the oldman in this ch, he's pretty old when eliya is smoll and the one that spark her interest in gemstone. and by previous ch, he's already very old that cant event getup from bed.....
The funny will be when the now even more ruined mom and half-brother will try to leech out of Eliya now that she's famous and has connections and what-not.