What if Jack Garland is in the Final Fantasy 7 Universe?

Like in the First Solider Era? Before Sephiroth turned Evil and went batshit insane, before Ever Crisis and OG Story of FF7 happened Like Jack Garland was captured and celled in for Dr. Hojo's Research, only for Jack Garland to escape, And noticed something off. This isn't Cornelia, nor Lufenia itself. And his Chaos Powers, Drained away after god knows how long he was knocked out cold. What would it happen next?