Kyuusai No Kyoushitsu

makoto noda, a run-of-the-mill japanese teacher, endures ridicule from his students while struggling to manage a classroom on the verge of collapse. on a fateful day, a misunderstanding leads to a slap from a pe teacher, causing him to hit his head on the corner of a desk and lose consciousness. when he awakens, he finds himself facing a mysterious window. as he completes them, his real-life stats improve and he also acquires special items…! with his newfound ability, can noda save the failing school from ruin?