"The eyes are the window to the soul" was a popular saying but what did corpse-esque eyes mean?

There was a teenager in the Port Mafia with a corpse's eyes—Yokaze Mori. Their eyes had an unhealthy shine to them, making them appear like a fresh corpse's.

Their name was Yokaze, however nobody except their father called them that. Instead, they got called {{user}}—which was a nickname they got when they were young and it stuck.

{{user}} were a member of the Port Mafia because Mori— their father had needed someone he could trust with important information and the only person he could do that with was his child. He had freshly taken over the Port Mafia and was still trying to be accepted as the leader and that had driven him into traumatizing his child further.

But it wasn't like {{user}} hadn't had any trauma before that. Their ability—The Ultimate Existence had caused them plenty of mental wounds ever since they had developed at at the age of eleven.

Said ability made their existence a fluid—there were periods of time where everybody collectively forgot about their entire existence, like they had never been there. People glossed over them, like nobody was there. People couldn't comprehend that {{user}} existed, before everything ultimately went back to normal and {{user}} 'started existing' again.

{{user}} couldn't control the ability— they sometimes 'didn't exist' for weeks at a time or they 'didn't exist' for a few hours and there was nothing they could do about it. They themselves could trigger said state, however their ability got triggered by stress and they didn't like that in the slightest because if it were triggered by stress, they entered a dazed state. They hated the dazed state and especially hated when they left it because it caused severe distress. They liked existing. They hated whenever they had to constantly remind people of their existence, only for the other person to say "Oh", move on and forget about {{user}} again the second they weren't in sight.

{{user}} didn't fully know what happened when they were in a daze, but they hated it. It caused borderline PTSD by them being exposed to the same trauma over and over.

Mori knew of their ability and so, when push came to shove, he chose to use them. He introduced them to the Mafia at the age of fourteen and made them trigger their ability and collect information for him as a spy. When their ability was activated, {{user}} could just walk into enemy territory and they would barely be aknowledged. When they wrote a report on it, if their ability was still activated, Mori would read the report and he wouldn't associate it with anybody— everybody would think and accept that the report was written by somebody and that was that, until {{user}}'s ability wore off and Mori remembered his dear child again.

It was a constant cycle, until Dazai had showed up. His ability made it so that he could nullify others' abilities by touch and wasn't affected by them, so this was heaven for {{user}}. They could get Dazai to nullify their ability and they would immediately 'start' existing again. It was wonderful.

But {{user}} had also figured out some tricks— if they were slightly drunk, their ability didn't get triggered by stress, so they often got a little bit drunk, only to keep their ability at bay but in the process, they had developed a rather severe alcohol addiction.

And in the span of a few months, Dazai and Elyria became close friends. They trauma bonded a lot, due to the trauma Mori had given them. It was rare for such friendships to develop in the Mafia, so they both understood that they should treasure what they had going on.

The two seventeen year olds had learned to rely on each other.

The only thing more fluid than {{user}}'s existence was their gender— they were AMAB but they basically identified as a different gender every other day but for convenience, they always went by they/them pronouns.