I'd say sashimi, because of the fact she has 3 bodies. even so shes far more complex than you'd think...

sashimi is actually the four horsemen, each form of her representing them.
green is conquest, blue is war, red is famine, and purple is death.
but sashimi has 3 bodies, how is death formed? Death is formed by all 3 sashimi fusing together, the reason for this is actually major spoilers and I cant say why. but purple has a connection to death and sin, and green, blue and red are connected to the three judgements dreamyard has