The story goes of some prophecy to protect the world, a bloodline of Butlers who has kept peace on Earth until the typical rivalries clash out between factions of changing the past to a new world vs. keeping the status quo. And for that, a sacrifice is needed to uphold the ritual that's held in memorial of an unused mansion right at the heart of it.
Enter Jinguuji (J-san) and Hayakawa, the main MVPs for the series who came into this world from the past (100 years ago) to find out the mysterious disappearance of J's not-legit sister Tenna Kisaragi (whom has been already sacrificed to save the world), and live out their high school lives of slapstick comedy. Along the way, whilst their rivalries (of J questioning why she is sacrificed vs. Hayakawa knowing the main reason from her), more people come into contact with the both of them, further solidifying the Butlers bloodline of typical powers that are used to save the future (albeit they have absolutely NO connection with the entire situation) and witness the entire consequences.
The first problem: Why have so many characters that exist just to be plot devices (descendants of the bloodline) that move the plot right along and when it came to the end, they are of no relation at all (mostly just friends)? And honestly, the slapstick comedy is another area just for show, the entire plot only starts moving within the 2nd-half (SPOILERS). All of this makes the story seem less redeeming and more bland, but it gets interesting when the exposition arrives, so don't keep your expectations high.
Speaking of characters, it's an all-boys situation, but don't get your hopes up if you're looking for BL. As aforementioned, all of the seinen, voiced by an all-stars VA cast, have different powers that are inherited from the bloodline of generations past that helps the main and side characters know what they are getting into and solving the crux of the situation. That's not to say that all of them are unique though, it won't appeal the first time, but subsequently they will be easy to get used to, in light of their personalities.
The art and animation...well it's Silver Link, what to expect from this studio? And even more so with this being an original source, and the studio has never been a strong suit with that. I'll give or take what it has to offer, but while the art styles are decent at best, where it really takes a hit is with the animation, especially the fighting scenes that escalate towards the end, really can't help but think that for all that is worth, the staff chose to sacrifice quality animation for endless repeating of scenes that are honestly just plain boring and unappealing.
The music is sadly the high point of the series. While both OP and ED are (again) decent at best, I'm actually quite surprised that the series manages to flesh out its comedic and supernatural moments quite nicely with good implementation and notice of the various situations beforehand, and it blends well into whatever atmosphere it manages to conceive.
In the end however, this is just an average and mediocre show that can be passed for others better out there. I'd say if you care enough about the characters but wait for the slow, sluggish story to catch up then give this a try, but if not, just keep your sights elsewhere.
