Candy-wrap (keyhole shape with one more handle) Shape Barrows (双方中円墳)
Candy-wrap shape barrow refers to one of the form of tumulus.
They have square juts on both sides of a round hill and were seen relatively during the early Kofun period (tumulus period).
Nekozuka-kofun Tumulus (Iwase Oyama-kofun Tumulus Cluster)
Takamatsu City, Kagawa Prefecture