Here is the full list of all 31 Death Mark achievements.
Witnessed Red Riding Hood's poisonous demise.
Learned of the repulsive deeds that gave rise to Red Riding Hood.
Frightened by the elusive Kannon Soldier and the Mark.
Witnessed the Kannon Soldier come to a touching end.
Learned the history of the Kannon Soldier and the underground shelter.
Frightened by the final showdown, but hopeful for the future.
Learned the insane history of Miss Zoo.
Witnessed Miss Zoo's madness come to an end.
Frightened by Miss Zoo's intense passion and the Mark.
Frightened by the mysterious tragedy that took place at Kujou Mansion.
Learned of the strange bond between Hanayome and her fiance.
Witnessed Hanayome's thoughts and feelings come to an end.
Witnessed Hanayome's regretful demise.
Frightened by Hanayome advancing and the Mark.
Learned the ghastly history of Shimi-O and the Honey Bee Family.
Witnessed Shimi-O's heartbreaking wish come to an end.
Frightened by the looming Shimi-O and the Mark.
Learned the horrifying history of Hanahiko.
Witnessed Hanahiko's intense spite come to an end.
Witnessed the burning demise of Hanahiko's grudge.
Frightened by the creeping Hanahiko and the Mark.
Frightened by a talisman that holds Soul Power.
Frightened by the existence of Mark Bearers who share the same fate.
Frightened by the choice of advancing death.
Frightened by the realization of inescapable death.
Looking forward to more terror descending upon you who has overcome all fear.
Witnessed Shimi-O's dissolving demise.
Witnessed Miss Zoo's raging demise.
Witnessed the Kannon Soldier's loathing demise.
Frightened by the final showdown and the resulting fate.
Witnessed Red Riding Hood's sorrowful sentiment come to an end.