Considering it's quite old and my enjoyment value, I award this anime a 6/10. Without those considerations, giving it a 5/10 is the most I could ever give it, maybe even a 4/10 if I am to be more stringent. Does this mean it's not good enough to watch or that it sucks? Nah, not really, it's actually fairly enjoyable. The thing I'm most disappointed about is that the mc isn't a ninja and hasn't got any real combat prowess whatsoever, especially since he's got that ninja symbol for his family line or clan or whatever on his neck, seems the only thing he inherited wasa good physique(for a normal person, although he's untrained and out of shape) and a good throwing arm, not that he ever trained in any way in his life. I never did like the whole "weak mc in a ruthless/power/skill oriented world" where they don't even try to get stronger even if they should do so for their own safety, resulting in them being pushed around or being all talk and no action, being incapable of even defending themselves. Rock or whatever his name was from black lagoon is similar, yet another character I kind of dislike because they don't fit in and never attempt to even do so. It would've been a better anime if the mc was actually the super skilled ninja that showed up at the start of episode 1 and that he had just, for some reason, abandoned his past yet got pulled back into it while teaching there, maybe he could've lost his memories but his body remembers the skills or something, that'd be cool. Then he could show off his OP skills now and then or whatever instead of being the only person there that can't even do the ninja teleport thing where they seemingly move faster than the eye can register as they disappear into thin air which even any of the students can do. I guess this partly has to do with me liking to put myself into the position of the mc and it's frustrating when they're weak fools that can't even pull their own weight around, leave mcs like that for romccoms or slice of life comedies that are set in the real world.

Well, whatever, this is a good story to waste some time with if you have nothing better to watch. I didn't feel that bored while watching and although it feels outdated and is extremely shallow with little to no plot and a weird story overall, it's not too bad. At least there's no big, glaring flaws that pisses you off and makes you want to drop it. The comedy is subpar and old, but it does have its moments now and then when it manages to take you by surprise. For a seemingly original anime without a manga, novel or game source, it's not that bad. I've seen far worse.