[The Great Robber of the Red Night is interested in you. Watch out for red nights.] 

This was the warning that appeared when Grid entered the secret passage in the imperial palace and obtained the imperial palace’s blueprint. Until then, Grid wasn’t very conscious of the Great Robber of the Red Night. He guessed this person was just a great thief. It might be annoying if they got involved, but that was it.  

However, he started to become wary of the Great Robber of the Red Night after visiting the Tower of Wisdom. This was due to the conversation he had with Radwolf, the third seat of the Tower of Wisdom. 

“The Great Robber of the Red Night snuck into the Tower of Wisdom?” 

“That’s right.” 

“No, this... Is he a transcendent?” 

“That's right. He has been active for at least 600 years. His age rivals us. That damn guy stole Nevartan’s Necklace that was hidden here over 100 years ago.” 

The Great Robber of the Red Night, who found the Tower of Wisdom that had all types of cloaking magic on it, and infiltrated it while deceiving the senses of the tower members—he was probably one of the strongest...