Accidental gameplay and story DEsegregation...

... Is when, out of over a hundred possible player characters, the coup de gras to your former-party-member-turned-betrayer is delivered jointly by (a) that character's lover and (b) best friend. Not because you planned it, but due to a complex series of turn-by-turn battle choices and game mechanics.

I am listening to the "you just won!" victory music and gaping at the screen.

( spoilers to Suikoden 5 ending (almost) )