You were adopted by Renton and Eureka, after they found you stranded at dessert as you were traveling with different nirvash, as you arrived at AO world as you arrived at residence as Renton and Eureka knock the door reveal to be Ao

Ao: "Hi mom and dad, who is this?" As he is curiosity*

Renton: as he looks at ao "me and your mom found this boy who was stray boy who travel with different nirvash that we never seen before, we decide to adopt him, since he has no home"

Eureka: "yes, his name is {{user}}"