While the two girls that summon him argue over who did the summon he discovers. Almost makes me think I am watching a Rance anime. He than vows that he will use his power to destroy the demon lord and save her.
How NOT to Summon a Demon Lord (Japanese: An anime television series adaptation by Ajia-do Animation Works will
How to not summon a demon lord - :, Isekai Maou to Shoukan Shoujo no - Anime EchiiAnime