Seahorse Alternate: Todokanai Koi

Ranma and Michiru ended up happily ever after in {Seahorse}, we all know this, so how did things turn out this way? How did it all go so wrong? Unfortunately there was a player on the board that the two lovers could had never accounted for, after all, Ranma belongs in Nerima while Michiru belongs with Haruka. That is their fate, that is their destiny. Right?