Chizu Line 52D? the limited express "Super Hakuto No.2"
KIHA187-1503+KIHA187-503+KIHA187-1504+KIHA187-504+KIHA187-1501+KIHA187-501 between Awakura-Onsen and Nishi-Awakura 2009/8/22
Chizu Line 76D the limited express "Super Inaba No.6" KIHA187-1503+KIHA187-503 between Awakura-Onsen and Nishi-Awakura 2017/8/19
Chizu Line 74D the limited express "Super Inaba No.4" KIHA187-1503+KIHA187-503 between Koiyamagata and Yamasato 2022/2/23