PCS

Who: Koyami (MC) the miko.
What: She's a 20 year old shrine maiden from Tsukuhime Shrine. She specializes in spears and glaives.
Where: redacted
When: Beginning
Why: She goes out to the Cave of Ordeals to prove her strength to the gods and to celebrate her coming of age.

Who: Ryuji the bodyguard
What: This samurai is descended from Ryujin the dragon god and wields mighty power in his blade but he prefers to keep it hidden... (not available in demo)
Where: He's originates from Ehime.
When: Beginning
Why: He serves as the shrine maidens bodyguard.

Who: Rin the mage.
What: A talented sorceress specializing in offensive magic.
Where: She originates from Osaka.
When: In the middle of the Kansai Arc
Why: She gets fed up with her father using her to scam travelers and runs away from home.

Who: Takigawa the pervert
What: Aa old priest that specializes in healing and defensive magic.
Where: He's originates from the Chugoku Region.
When: At the beginning of the Shikoku Arc.
Why: He decides to accompany them through the mountains and beyond, but it's really cause he has a thing for Rin. (dont ask)

Who: Saya the assassin
What: A deadly ninja specializing in ninjitsu (debuffs and status ailments) and daggers.
Where: She originates from Saga.
When: She joins in the Kyushu arc.
Why: Desires vengeance against the
yokai that slaughtered her village. But knows she can't defeat such a strong yokai alone.

Who: Gosanke the tough guy
What: A martial artist whose body is the best weapon. He also wields claws.
Where: He's from the Kanto region.
When: He joins at the beginning of the Chubu Arc.
Why: Cause monks are awesome.

Who: Yuki the ice woman
What: She's a half Yuki-Onna archer with ice based specials.
Where: She originates from Hokkaido.
When: Joins at the beginning of the Kanto arc.
Why: Just wants to go back home but has a bad sense of direction and needs a little help.
NPCS
Who: Shizuka the Enigma
What: A spirit that appears to guide the others on her journey.
Where: Her origins are unknown.
When: She first appears in the first dungeon
Why: You'll find out in Kyushu
Who: Inari the Goddess
What: A goddess who walks among man in the form of a nine tailed fox. She is considered dangerous by many.
Where: She originates from Heaven obviously.
When: She appears in pivotal scenes (including the intro where she speaks with another deity) as well as at Inari Shrine.
Why: Gods have no reason.