Leo Akaba/Relationship

Reiji Akaba
Reiji is Leo's son. Leo appears to be apathetic to his son as Reiji asserted his father would not ransom him if he were kidnapped. Reiji is shown to have a deep grudge towards Leo for neglecting him and his mother and determined to punish him when he suddenly abandoned them and his company. After discovering Leo's plan, he immediately created the Lancers to fight against him. He also displayed a hatred for his father's ambition due to the suffering he and his army have caused, and has since then referred Leo with his name. Leo doesn't seem to return Reiji's hatred, ordering his soldiers to defeat the Lancers for exception of Reiji and asked his son to help him destroy Yūya in order to prevent Zarc's revival. However, this only angered Reiji even more and made him even more determined to stop his father. Though, Reiji still does care for his father, unwilling to let him sacrifice himself to stop Zarc and saved him when he was defeated by the Demon Duelist, even once again calling him "father" after long times.

Ray
Ray is Leo's daughter. Both had a very close and loving father-daughter relationship, Ray willing to sacrifice herself so her father can continue to live and Leo has shown complete devotion and love for his daughter Ray that he placed her above all others, even more than his second family. His love for his daughter is so strong that he is determined at all costs to bring her back to life, to the point of disregarding the feelings of others and has no qualms to invade other dimensions or sacrificing other lives as long as he can bring his daughter back to life.

Yūri
Yūri appears to be Leo's most trusted student. Despite knowing Yūri's origin as one of Zarc's reincarnations, Leo decided to teach Yūri once knowing of the boy's skill help him fulfilling his goal. Leo is shown to trust Yūri greatly as he entrusted him to kidnap Yuzu's counterparts because he knew that Yūri will handle the situation very well and is confident in his skills. Yūri in return is very loyal to Leo and will obey and do whatever Leo orders him to do and will follow his instructions without any question. To Yūri, Leo is the first person to have accepted him and dutifully follow his order not only to amuse himself but also to make the Professor happy. Unfortunately for Leo, his teaching eventually made Yūri became obsessed to card people, leading Yūri no longer care with his order and now wishes to turn everyone into cards, which horrified Leo.