Kaiba just barely manages to catch Ishizu, and he tells Ishizu that he loves her. They then have their first kiss. A year later, the two of them decided to tie the knot and end up marrying each other.

Seto Kaiba: Lost his soul after losing to Dartz. Came back when the Great Leviathan was destroyed. Yami Marik: The majority of his body was destroyed when he merged with "The Winged Dragon of Ra". The remainder of his body was destroyed by Marik Ishtar after he surrendered during a Duel against Yami Yugi.

(Both anime and manga events) From here, Kaiba became more of an anti-hero than a villain, and usually does nothing worse than trying to get in Yugi's way or make fun of Katsuya Jonouchi. In the majority of the Duelist Kingdom arc, he was out to save his brother Mokuba, who was kidnapped by Pegasus J.