If you're looking for manga similar to Katato The Animation, you might like these titles.
On Earth, humans live unaware of the many gods who watch over them and help maintain a sense of balance. But one day, a very special girl named Ichiko Sakura will come face to face with one in the flesh – Momiji, the goddess of misfortune! For Ichiko is unknowingly sapping good fortune from those around her, sporting abnormal levels of beauty, intellect, athletic skill and wealth, and it's up to Momiji to help put things back into order. There's just one problem: selfish Ichiko is fully satisfied with her life, and wants nothing of the sort! Determined to keep her mojo safe from the cranky goddess's giant syringe and wide array of bad luck "devices", Ichiko now must deal with a whole host of supernatural lunatics and the fact that her new tormentor has moved in as an unwanted house guest, all the while trying her best to stay as fabulous as possible!
A sloppily worn lab coat, lifeless eyes just like a dead fish's. He's the most un-teacher-like high school teacher, Sakata Ginpachi. The class he's in charge of, 3Z, is filled with 'intensive' students who have created a horrifying amusement park.