oh for real? the waking up from a dream cutscene had him say ren junior so I thought that was his canon name
Wow, you're right that it says that there but it must be an error in the original? Because, see this part here:
#t=358&list=PL8JmJYDyXnXlrwJPh3ve11lxhNBXQGw64&index=8Mariru changes his name, and it immediately changes above the dialog boxes. The name you picked and got used to for almost two whole chapters... so you feel a sliver of what Ren is feeling, "Hey, wait, what, you changed my name?! You can't do that!" A feel possible to give the reader only in an interactive medium like this.