This is what happens if you let the childhood friend win, you rupture the space-time continueium and get branching timelines
On another note, really? Multiple endings? I'd rather get a single well written one even if the winning girl is nowhere near my favorite, but let's see how the others are handled.
@Mitsu13
Been some time since I last read it so I thought Chihiro was a childhood friend... technically they all are childhood friends as they first met in the back to the past arc when they were all kids...
But I guess the childhood friend would be Tenri in this case, huh...