The only difference between the "Home World" and the "Alternate World" Leena is her relationship with Serge; Home World Leena has had a close relationship with Serge her whole life, while the other doesn't even recognize Serge, not having seen him for ten years due to his death occurring in that world. It is actually Alternate World Leena who follows Serge for much of the game; the Home World Leena only initiates the search for jewelry that set the events of the entire game in motion, otherwise staying behind. The Alternate World Leena joins Serge if the player chooses to reject Kid's first offer to travel with Serge early in the game, Leena not chasing after him if another girl is with him already.