Hei Yuhua suddenly asked for System Yang's help out of nowhere. After getting a sudden proposal and receiving a rare expression from the man he loves, Hei Yuhua's brain overloaded, and could only call for a friend for help.
System Yang heard from his alter ego, System Yue about Ye Yuyan's situation. Because Ye Yuyan didn't receive the blessing from Lord Hei, he still has restrictions on OOC on him. Unlike Hei Yuhua who was personally permitted to do whatever he wanted in this world. Thankfully, Lord Hei didn't forget to allow System Yue to remove the restriction of the heavenly laws on his husband. But this authority had no effect on Ye Yuyan which is why he could only receive his memories one at a time.