The battle between Chudelkin and Kirito, Eugeo, as well as Alice began real quick and ended real quick, as we found out that the Administrator knew that Kirito wasn't from here but the other side, they had a very long chat and then we finally get to the battle.
The administrator uses her arts to summon a golem using every Integrity Knight's weapon with the exception of Blue Rose Sword as seen on the left. They fought against it and they all had a hard time defeating it as opposed to Chudelkin which they manage to take him by working together. The golem on the other hand manage to injured both Kirito and Alice leaving Eugeo in deep shock and was shaking in fear, Kirito wanted to help Eugeo but was unable to do a thing, at this moment the spider from earlier on reappears and tells Eugeo to use the dagger to call Cardinal which he did as he was told, the spider Charlotte tried to buy Eugeo time while he uses it and she died protecting Kirito, Eugeo and Alice. Cardinal appears and heal both Kirito and Alice, Kirito tells Alice that she is on their side and Alice thanked her for healing her wounds. They then faces of with Administrator. The animation for this was really awesome and the soundtracks that played along side it made the scenes more dramatic, like always.
Rating: 9/10
P.S. I omitted a few points in this review as it contains spoilers for the 2nd part of the season.
I will link the changes that was been to the anime once this part ends, as in once episode 24 which is the 1st half of this season.