Etsu Aihana  

, 藍花 悦

This individual is a young male who, during the tumultuous events that transpired within Academy City's Learning Core, feigned being the 6th-ranked Level 5. This assertion has been corroborated by Shokuhou Misaki, who maintains that he is merely portraying himself as such. At present, there exists a lack of clarity regarding whether or not "Aihana Etsu" represents his genuine name or the authentic identity of the Number Six.