Nicholas The Renegade

Nicholas The Renegade is a Christmas event boss that appears on Christmas Eve under a certain fir tree. It has four health bars, wields a giant battle axe, and was also the first event boss who did not appear during the beta test, so information about him was limited.

Chronology
It appeared on Christmas Eve of 2023 on the 35th Floor in the Forest of Disorietation. Rumors had spread a month earlier that if it was defeated it would drop an extremely rare item that would be able to revive a player as such it was sought out by many. After the demise of the Black Cats of the Full Moon, Kirito learned about the boss event from Argo. He accepted the quest event and trained desperately in order to obtain the item in hopes of reviving Sachi, and at the least to clarify the last words said to him right before she died. After finding the boss and obtaining the item, Divine Stone of Returning Soul. Kirito was distraught by the fact it can only be used to revive a player if he or she dies within ten seconds. Returning with a dead look in his eyes, he gave the item to Klein and his guild who earlier followed him and held off the Guild Divine Dragon Alliance to allow him to fight Nicholas The Renegade alone.