Wake up, Eugeo! A clash between friends has erupted on the 99th floor, but victory is not certain for either side. Kirito’s mission remains clear: to convince Eugeo that he is under the control of the Administrator. Fortunately, Kirito’s words reach Eugeo, causing him to temporarily halt their fight. Leaving Alice and Kirito behind, Eugeo returns to the 100th floor with newfound clarity. However, the Administrator remains unaware of this development. Approaching her stealthily, Eugeo attempts to assassinate her with Cardinal’s dagger, only to find that it can’t harm her. He will need more than just a dagger to defeat her. Meanwhile, Chudelkin descends to finish off the frozen duo, unaware that they won’t be immobilized for long. Eugeo’s initial intention was to make amends for his mistake, but his friends refuse to let him shoulder this burden alone. Together, Alice, Kirito, and Eugeo take their stand against the final roadblock before reaching Quinella. Chudelkin has staked his life for one night with the Administrator, and now the 100th floor burns with anticipation.

After many years, the trio is finally reunited, and their allegiance is unwavering. However, the most challenging part of their adventure is about to commence. The 100th floor houses the ultimate boss of humanity, a formidable opponent that has maintained her superiority for a long time. Not all will emerge from this battle unscathed. Nevertheless, before they can face the Administrator, one more obstacle awaits them. Brace yourself for an emotional reunion!

Now, let’s talk about the opening. Be warned that if you pay attention to the opening scenes, they might hint at the ending.

Now, let’s take a look at Episode 21:

![Episode 21](https://animesolution.com/wp-content/uploads/2019/03/Sword-Art-Online-Alicization-21_