Nioh

The Abyss is a level located on the left of the map, immediately above the two twilight missions. Each time it is generated anew and when you enter it, 4 negative effects are applied to you. The healers in this level have their own, you cannot call back the guardian spirit and you will lose if you die on the level without it.
To remove four negative effects, you need to go through four random levels, at which you need to find a kodama (the sense of kodama is not needed here, it is indicated by a dot on the map). Completing a level removes one of the effects. These effects only work in the boss arena. I’ll say right away that it’s quite possible to complete the first few levels without removing these effects.
Each subsequent level of the abyss increases quite significantly in difficulty level and you will not be allowed further than the fifth until you unlock the Demon Path difficulty. If you play with a partner, there will be two bosses in the arena instead of one. But this applies to playing through the Torii Gate. When using cups, the boss is left alone.