My Little Invisible Being

This anime is set in the year 20XX and follows the story of an alien pig prince who arrives on Earth with the intention of inhabiting a human body. However, he discovers that his chosen host is still unborn, leaving him without a suitable residence. The prince forms an unlikely friendship with Saiji and Rubi, and the trio engages in various humorous antics that often result in unexpected consequences for humans, such as hair loss, bad breath, and emotional distress.