Like, in OIAL you lost Judie telling the MC that soon there will be the release of a MMPORG game called Eternum that promise to completely change the world of games?
The final secret ending that see you as an Eternum player logging of and talking with Dalia?
In Eternum the ex president Stabby Mike coming from Kredon?
Orion that nominate the Sons of Astaroth?
When Calypso and Orion escape in one of the servers they go in a japanese house with the foxes girls and they talk of Mister Hiromi, that was the tourist guide and one of the yakuza bosses in OIAL?
Also I don't know how many noticed during the quiz but the blonde guy that ask Luna's father where is the bathroom is clearly Oliver from OIAL?
The scene in Warthog where Orion need to choose the two books that are a clear reference to Magnus's Grimoire?
I mean I'm probably forgetting many other details I've seen right now, but man you really need to replay both games, you missed a lot of details that show clearly that the games are set in the same universe.