Stolas has a calm demeanor, showing genuine care about the members of the Sentinels, considering them his children. He is also able to handle criticism well and is honest about his weaknesses; one being his inability to become a Sentinel despite being their main leader.
•His manner of speaking, while generally fluid and gentle, is extremely tactful; using words and intonations in a way that the person he talks to would listen. His tactful and charismatic speech is even able to make the likes of the initially passive Rui and the impulsive Sanemi listen to what he has to say without conveying anything that would rile them up.