If the domains of normal Special Grade Cursed Spirits are fatal, the domain and the Special Grade Cursed Spirit that Natsu and Sukuna encountered this time did not resort to lethal attacks from the very beginning.
Instead, through temptation and indulgence, they were lured into the abyss of the heart, where their minds and souls would eventually be exhausted. The demise of the soul would lead to the death of the flesh, ultimately turning them into nourishment for the spirit.
Gradually, the darkness and desires deep within their hearts devoured their minds and souls like a bottomless pit until they were drained dry.
Chapter 114