Volume 18 of Sword Art Online marked the end of the massive Alicization Arc. Now, we can finally go to a new arc, in a new wor- wait, why is there a map of the Underworld inside volume 19? Oh my God. Of course… This is Kawahara. We can’t go to a new proper arc without some filler in between! This review covers the two-part filler arc: Moon Cradle.
Moon Cradle is set during the two hundred year time period that Kirito and Asuna are trapped in the Underworld, after they beat up Vecta and Poopoo (Laughing Coffin guy), and turn Alice into an android (or something). Everything’s all well and good, until a goblin is accused of murdering a civilian. It’s up to detective Kirito once again! After all, he’s solved a whopping one other mystery in his life; he’s perfect!
The first volume is basically figuring out who the murderer is, and the second volume is catching the booger. Like other SAO filler arcs (besides the Asuna one), Moon Cradle is incredibly boring. Furthermore, Kirito and Asuna get free plot armor, since we’ve SEEN them return from the Underworld in the previous volume. He also showcases more of his OP-ness from scenes like being able to force open a Vecta-only door with no problem.
The characters don’t get much better either. Sure, Kirito and Ronie (who’s role in the Alicization Arc I completely forgot) get to spend some time together, but it’s more so a kick in her crotch, since Kirito and Asuna will always be THE couple. But hey, at least Kirito is as “good” and “inspirational” as he always is (*proceeds to wretch*).
And similar to most of SAO, despite the urgency of the situation (which ends up escalating to both a murder and a kidnapping), the characters find some time to goof off. “Should we solve this mystery?” “We should, but I think we should have a picnic lunch first!” This is almost Log Horizon level of characters actively choosing to not advance the plot.
But the term “advance the plot” is applied loosely here. Most of the investigation is them discussing the nuances of the Taboo Index over and over and over again. And the one time they do something investigative, they just whip out some magic that allows them to witness the crime as it occurred! At this point, I’ve lost all knowledge (and care) of how the magic system in the Underworld works, so if you can prove whether or not the spell they did was possible within the world’s logic, then have at it and explain it to me in the comments section.
To end off the arc is a less-than-stellar climax. It builds up to the possibility of a team of two women fighting the bad guy, which would have been a nice change of pace. I say “would have been” because Kirito shows up right at the end and takes all the credit like the scientists who stole that one lady’s discovery of DNA. The actual conflict isn’t even resolved, and Kawahara even points that out himself in the afterword. But despite this, he’s chosen to start a completely new arc because… reasons?
Alicization was the first remotely descent arc in SAO, and now we have this. I’m sorry for being so rude, but I was seriously, lividly tired of that blasted Underworld! Well, it’s over now. So let’s hope beyond hope that Unital Ring is even worth half the pain of putting up with everything that leads up to it!