I really like thsi series, is still short, the art is no good and the traductions are still confusing. Premice: Homura-sensei is a highschool biology teacher that can't be healped, between his slow old age actittude, his small body, young age for a teacher, strange shirts, weird gimmics, Yoshino emergency plan and lack of social skills seems like the perfect candidate for being an easy pick for students bullied. He is very diferent for the norm and he knows it, but strangelly enough a student becomes interested in him and strats becoming his friend and hellping out in different scenarios. The story is well written, shown in short4 panel chapters it shows Homura way of being in different school related situations.
The artstyle is cute and simple but the mangaka stills needs to develope its drawing to be more consistent and comprehensive.
Untill Now there are 3 main characters and 3 ocational (or have been mentioned), they have a good set of characteristics, interests, and way of doing things, which brings interesting funny scenarios.

You shoud give it a chance since is fast to read it, i really hope to gets more momentum and the mangaka to continue the series