Yuki is the protagonist of Grandia III. He wanted to have sex with Alfina, but then changed his mind.
When Yuki took off his pants, he blamed a Lizard Man for doing such a thing to get off the hook. He attempted to get off with Alfina, but realised she was too sissy for him when she talked about birds and animals. In the end, he gave up and told her to burn on the second disc.