From the When They Cry Wiki:

He visits Hinamizawa about three times every year and is known by the villagers. Tomitake also seems to know a lot about the village and its history, although this may be in part due to his relationship with his girlfriend Takano Miyo, who has a deep interest in the subject.

Not from the wiki, but Tomitake is a very goofy, easy going man. He can be serious when the time calls for it, though, and is very knowledgeable about things the villagers don't like to share.