Heero had no relationship with Ofuchi.

Hiroshi (Ofuchi's former unwilling apprentice) was one of my characters.

As for Yurius, one of my ideas was not really an idea, just a realization that I really liked the sound of the name "Kritiker Losstarot" and could probably weave a story of some descendant of one of Sydney Losstarot's uncles or something trying to revive Losstarot's empire at Lea Monde/Miletos