Hikigaya Hachiman Transforms into a Cat

One weekend after the cultural festival, Hachiman spent the weekend alone at home doing nothing as usual. It's rare to have a good release from the fatigue of the festival and the pressure of school. However, the gods of romantic comedies, who are the gods of destiny and comedies, probably don't want him to live too lazy. The ladder of life is reaching its peak step by step, how can it stop here? Give him another push, maybe this strange experience will make him more aware of the relationship between them. Good fortune and misfortune depend on it, what kind of strange things will happen to the three of them?