User blog comment:Hitsuji Mamoru/FGO-style Servant Creation Room/@comment-28209103-20170122121326/@comment-28209103-20170122133230

actually his theme is "Hero of the populace", "The Peasant King" and the "Idealistic Military Genius"

Buddha started as aristocrat, He saw the hardship of people in the eyes of someone who are ignorant of such thing all his life and felt empty afterwards. this guy started as street urchin, the hardship of people is the only perspective he have, his hatred to the tyrant is genuine, hence he led a rebellion. if we explore his personality deeper then Chandragupta is extremely humble and righteous, he doesn't boast to people depsite his great intellect, he act no different to people around him after he became the king. he hates injustice, corrupt conduct, and bootlicking and favor merit over bloodline.

just think of it like this, he's an Idealistic 15 yo who want to destroy the unfair part in society, and such boy have the ability to do so, A Charisma so powerful it rival AuO, and a genius without rival. in other word

Adolescent idealistic thinking + Charisma + Intellect = Chandragupta.