01 / Registered monument
The station name Kakio is said to comefrom growing Zenjimaru persimmons.

The original Zenjimaru persimmon tree grows at Ozenji in Asao Ward, and the tree and six old trees in the same area were registered as a National Registered Monument in 2007. Said to be the oldest sweet persimmon in Japan, it is said to have been found in the hills of Ozenji in 1214. The place name Kakio is said to come from the many Zenjimaru persimmons grown there.
- July 26, 2007: National Registered Monument (original tree and 6 old trees)
- Said to have been found in the hills in 1214 (Kenpo 2)
- 1889: Kakio Village formed by merging 10 villages


