When Ryan had entered the room, he had inherently felt the power radiating from The Old Man. But contrary to what one might expect, he didn't feel any fear.
Not only was his 'Death Before Fear' ability at work, but also a tacit understanding of why The Old Man wasn't a threat to him.
God-Tier cultivators can't hurt lower-tiered cultivators unless attacked.
Ryan didn't know how he knew this, but he somehow attributed it to something other than his lack of memory.
This feeling was the same when the voice spoke to him, warning him of Milf.
"Why is her name Milf?" Ryan suddenly thought out loud.
The Old Man Laughed, "That stupid bitch begged me to let her have kids, but after I forced her to stay a virgin for so many years she forgot about wanting to become a mother. So I changed her name to Milf so that she would remember," after getting over his initial shock at the sudden outburst, The Old Man was eager to tell Ryan of his misdeeds.