Thread:MMYP999/@comment-27109830-20190617204132/@comment-27416494-20190706232442

Right, so Jecht and Ryoji are unwilling bringers of destruction who share a deep personal connection with their respective main protagonists, with Ryoji having been a part of Minato's psyche and Jecht being the biological father of Tidus. As the human avatars of Nyx and Sin, Ryoji and Jecht were destined to ravage their worlds with death and misery, but because of their good hearts, they also strongly urged the protagonists to kill them to put an end to the suffering they've caused.

When properly confronted at the end of their respective games, the two of them would lose what little sense of control they had left and take on eldritch new forms that towered over the human protagonists, whilst wielding equally massive blades to do battle with them. Afterwards, the main protagonists would go on to face off against the inner cores of Nyx and Sin in battles that were completely impossible to lose (at least, unless your party intentionally stoned themselves in FFX), after which Minato and Tidus would have to sacrifice their lives in order to fulfill Ryoji and Jecht's final wishes.