Comment by KwaiCwai on How To Reject My Obsessive Ex-Husband - Chapter 4

Comment on ChapterHow To Reject My Obsessive Ex-Husband - Chapter 4
Okay so Ciel is originally from this world but was sent to Korea to see actual guides, then when he died in Korea he was sent back to his own world to find the true star to help the empire. 

Weren't Ciel and the Crown Prince were supposed to be the only Epsers in the empire? If his brother is an Esper too that means that there could be more guides and Epsers in this world but could be treated similar to his brother so no one ever finds out. Does that mean that the novel is has an unreliable narrator?