As with the matter of truth and regret on the matter. At first we learn a skewed version of the story where Yoshiyuki suggested that Tamaki’s regret was being taken in her prime. When in reality he violated her. Despite that, she took care of that cat, and that cat is what we have the monster as. He attempted to protect Tamaki. A sad tragedy is what became of the cat because the true monster was Yoshiyuki, who ironically spawned the hatred in it.
