Leo Akaba/Relationship

Reiji Akaba
It is currently unkown how Reo felt for his son but Reiji is shown to have a deep hatred and a unkown grudge to Reo and belives that Reo doesnt value him that much he is also display a great hatred for his fathers abmition due to the suffering they have cost

Yuri
Yuri appears to be reo most trusted student. Reo is shown to trust Yuri greatly as he entrusted him to kidnap Yuzus counterpart because he knew how Yuri will handle the situation very well and is confident in his skills and Yuri in return is very loyal to reo and will obey and do whatever reo orderd him

Serena
Serena is shown to be pissed of that reo doesnt let her go out and forcing her to stay. Reo is shown to be interested in Serena unkown ability  and Serena is trying to prove how worth she is towards Reo so that reo can allow her to join the war. According to Serena Reo has treated her kindly with care

Sora Shiunin
Reo also appears to trust sora like how he does towards Yuri. Unlike Yuri sora doesnt listen to reos order as it is seen when sora ask him to return to standard reo granted him and ordered him to bring serena back to academia sora only went there to get revenge on shun rather than focusing on his misson what reo orderd