The best thing about Sensei is that he realizes Kei is a tsundere, and instead of being dense, he keeps teasing her and ragebaiting her until she admits that she was the one who made the chocolate herself.
These guy are so determined to erase the existence of the Kivotos and restore everything to the way it used to be, just let it go, man. These forgotten gods are having a blast playing a cute anims girl simulator.