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The winner in every love triangle and harem is always the tsundere. The kind of characters that are never honest with their feelings and are always causing the waves of conflict in the relationship. I've tested this theory on many harems and love triangles and it holds true 99% of the time (only time it failed was with School Days, but to be fair it could have gone either way). The next time you watch a harem or love triangle series, look at the characters and find the one with the tsundere traits and you'll find your winner.