Tsuujou Kougeki ga Zentai Kougeki de Ni-kai Kougeki no Okaasan wa Suki Desu ka? S01E04 - Kids Are Kids and Parents Are Parents but Also Human Beings, and It Takes All Kinds, but They Get Through It Together, Right?

The "Empress of Night" turns out to be none other than Wise's mother, who she split up with after a fight. When the two of them went their separate ways, the Empress decided to stop playing the game and instead go chasing after attractive men.