Cautious Hero: The Hero is Overpowered But Overly Cautious
Genre: Stuck in Another World, Fantasy, Comedy
Fanservice: Quite a bit
Premise: See the title? That.
The past year has had a number of deconstructive shows that have turned their genres on their heads, and this is another one. The setup for this show is that Isekai is an actual cosmic industry, where a war between heaven and demons is happening on multiple worlds at all times, and the gods must constantly abduct heroes from our world to fight the various demon lords threatening to take over other worlds. The not-too-competent goddess Ristarte is picking a hero from candidates to go to an extremely difficult world, and finds one character sheet with ridiculously high stats, with a caveat at the bottom: "Personality: Impossibly Cautious." Thinking that hey, an overabundance of caution can be a good thing when the stakes and difficulty is so high, she summons Seiya....
... who then refuses to leave his room until he's gone up 20 levels solely by doing strength training exercises. Seiya is abrasive, rude, has no filter, and so "cautious" you might as well call it paranoid. He sees poison in every cup, a trap in every stepping stone, and betrayal in the eyes of every ally. He won't leave a town until he has purchased every single healing item from every vendor, "just in case." He uses ultimate-tier annihilation attacks on low level enemies, and then repeats those attacks on the dead monster corpses, "just to be sure." If his HP or MP drops below 99%, he immediately retreats to recover.
It's mostly a gag anime, with lots of lewd jokes thrown in for comedy relief. The running gag starts to get a little stale halfway through the season, but the last two episodes come close to redeeming it with some revelations of tragic backstory.
All in all, I'd give it a 2.5/5. Worth a watch if you've run out of other things to watch. It's not bad, but I wouldn't call it required viewing either.
It's a Kadokawa joint, too, so I guess we can look forward to seeing Seiya and Rista (along with Animal Mask and crew from Kemono Michi:Rise Up) in future seasons of Isekai Quartet, right?