It's a cute manga, what can I say? A stoic and honest tank of a man trying to teach a class in high school with a bunch of stereotypical pervy girls, nothing we haven't seen before a million times, but characters are expressive and the comedic misunderstandings and exaggerated reactions are just enough to be funny and endearing without overstaying their welcome. As the story advances you also start to delve a little deeper into the motivations and past experiences of the characters in a way that both advances the plot and improves our enjoyment of their interactions. The art style emphasizes characters (poses, clothing, eyes)over backgrounds, managing to create some really interesting scenes; some aspects of it remind me of March comes like a Lion with how strandy and wispy hair looks or how eyes occasionally get this massive amount of detail and shine to them. Also there's an easily-flustered vampire-toothed girl that looks like she teleported here straight from Getsuyoubi no Tawawa and as the story advances we go from soft ecchi to very ecchi, so yeah, what's not to like?