[rdonj]

Contact Jigami, 1n 10 gems, conj 4.
Summon Ujigami, 1e1s 8 gems, conj 5.
Contact Mori-no-kami, 3N 21 gems, conj 5.
Summon Kenzoku, 1s1e 9 gems, conj 6.
Summon Gozu Mezu, 3d 7 gems, conj 6.
Contact Yama-nokami, 4e 28 gems, conj 7.

"Ox-Head and Horse-Face's weapons cause an effect that looks like False Fetters. It seems to be some kind of entrapment."

Hmm, that's not bad. Depending on how good it is that could be pretty nasty with their stats.

Jomon has a lot of other summons that are sacred also though (tengu, oni general/dai oni), and though their recruitable sacreds aren't the best and are capitol only they're fairly reasonably priced at least compared to the rest of jomon's recruitables.