Mahou Shoujo Ai San: The Anime

The danger from the demonic Yuragi is greater than ever. Shin, a particularly powerful Yuragi, has united the solitary night creatures under his leadership and fathered a daughter with Mahou Senshi Rin. With her help, he plans to create a paradise for his species driven by primitive instincts. The battle companions Ai, Meg and Rin try to put a stop to Shin's activities, but the tentacle-armed monster in human form seems almost overpowering... (Source: anisearch)