A boy who loves riding his bike around the neighborhood in Nekomi. He meets Skuld during the time where she was learning to ride a bike. He was the one who taught her that it didn't matter if she fell off the first few times she tried, what mattered was that she got back up, and eventually she learned. This coincided with Skuld's magical powers slowly developing - it was revealed that a Goddess' power comes from the power of love others. Skuld started to fall in love with Sentaro, and hence her powers started to develop. Sentaro eventually moves away with his family, though Skuld does not become sad by it, as she claims that despite the distance they will always meet when they want. It turns out that Sentaro only moved across town, much to Skuld's embarrassment due to her previously stated claims.
source: Wikipedia