I've been searching somewhat desperately for a manga where the main character, or a side character that frequently shows up, is immortal or very quick healing, but is actively trying to kill themselves. I've tried looking through a combination of immortality and suicide categories, and have read or are actively reading all four, which are Mugen no Minamo ni, Seol Hui, The End in Common Ruin, and Vampire to Shinigami . Seol Hui and The End in Common Ruin don't really fit what I was looking for, as far as I remember. The other that I have found, Temptation Moon is mostly untranslated. I'm as caught up as I can be.

I've tried looking through the Immortality category, but there are enough that it is hard to find such a specific concept, even when they do mention something about it in the description, which can be rare.

Mangas like Mugen no Juunin and Left Right(I think), where the main character is immortal/invulnerable/invincible, is acceptable, at least as long as they are repeatedly put into situations that should kill them. Spikes through the head, anyone? I think a story like Inochi + Kurenai would work as well, but since no chapters have been released I can't be sure.

If there is already a thread like this, and my many search attempts have failed abysmally, I would gladly like to know about them. Thank you for your time.

Sir, I'm afraid you've gone mad with power.
Of course I have! You ever tried going mad without power? It's boring! No one listens to you!

Ningyo no Mori - Immortal man looking for a way to die.
Immortal Rain - Not sure about this one. I think he just lost the will to live / has a depressing existence.
Dogs Bullets & Carnage / Dogs- Main character is quick healing with a death wish.

wow this is a pretty hard topic.. Looking for more...

If TV is ok for you:

Misfits and ! Heroes have characters like that.

[img]https://lh5.googleusercontent.com/_YWoztpsbz1g/TdnBLYIyyFI/AAAAAAAAAQU/SQRRMGaFWfg/banner.jpg[/img]
Image from Gangsta -> Full Image Link http://www.k4.dion.ne.jp/~babyrock/page030.html

3x3 Eyes

All choices are made in fear,
What you fear more is the only difference.
Positive decisions are made in fear negative consequences,
Negitive decisions are made in fear of positive decisions not giving the outcome you want.
Embarrassment is the fear of people knowing your real thoughts.
Greed is the fear of having too little.

Demonblaze0's personal thoughts

it's not a manga, but when I read your post, this title pop out

The Immortal Prince (Tide Lords #1)
by Jennifer Fallon

"When a routine hanging goes wrong and a murderer somehow survives the noose, the man announces he is an immortal. And not just any immortal, but Cayal, the Immortal Prince, hero of legend, thought to be only a fictional character. To most he is a figure out of the Tide Lord Tarot, the only record left on Amyrantha of the mythical beings who, fables tell, created the half-human, half-animal Crasii, a race of slaves." "Arkady Desean is an expert on the legends of the Tide Lords, so at the request of the king's spymaster she is sent to interrogate this would-be immortal, hoping to prove he is a spy, or at the very least a madman." Though she is set the task of proving Cayal a liar. Arkady finds herself believing him against her own good sense. And as she begins to truly believe in the Tide Lords, her own web of lies begins to unravel ...

Toukyou Akazukin if you dont mind lolicon and ero-guro.

Yoru no Kakaku this somewhat qualify as

he deliberately ask to not being able to remember people who meet him because they forget him too

Dear the male mc dont care what happen to him

Who the heck wouldn't want to be immortal?

Screw love
I don't mind damnation
Who needs money?

I want to live forever and i wouldn't mind eating nails for breakfast for the rest of my immortal existence if that was the price.

Anyway, Hulk had that situation if you want to try Comics (from now on in this post comics stand for USA comics)... when Betty Banners died (the first time, because everybody comes back to life in comics, even worst than in manga) Bruce Tried to kill himself all the time but couldn't because of the whole Hulk thing.

For manga (that hadn't been mentioned yet) Kurozuka has a character in that situation, but the story doesn't focus on him

Hellsing.

And these could be useful to you :
http://tvtropes.org/pmwiki/pmwiki.php/Main/DeathSeeker
http://tvtropes.org/pmwiki/pmwiki.php/Main/WhoWantsToLiveForever

have you tried looking for some black humor/suicide ones like sayonara zetsubou sensei??

Again not a manga but the film version of Basilisk, I think it's called something kunoichi, has an immortal guy who wants to die. How he does it is quite intresting too 😀

Absorb Ability has a character like that.

“All the kids have always known,
that the emperor wears no clothes,
but to bow down to him anyway,
is better than to be alone.â€

-Arcade Fire

Immortal Rain is mentioned here, but it's actually the antagonist that's the suicidal immortal not the protagonist. The story itself it rather lighthearted though, I don't know if you'd want something darker.

You've probably seen it, but if you like film, "Groundhog Day" fits 😃

Go to work, send your kids to school;
Follow fashion, act normal;
Walk on the pavement, watch T.V.;
Save for retirement, obey the law.
Repeat after me: I am free.

I second Immortal Rain!

As they played the game...I waited for someone to call "onigiri." But no one called. I was very little then. I had almost forgotten about that. [...] But they knew...there would never be room for an onigiri...in a fruits basket.
-Tohru Honda, Fruits Basket

Thank you all for the responses.

Faraway: I'll definitely try Ningyo no Mori. I'd found it before, but for some reason didn't start it. I'll also definitely have to take a look at Dogs. I started both of the TV shows as well, but I may have to restart them if you think they match.

I finished Immortal Rain quite a while ago, and yes, I would agree that the protagonist isn't the suicidal one. It was an interesting story, but not really what I'm looking for. I want a more deliberate attempt at suicide, like someone who slits their wrists, or challenges someone who they know they can't get beat and then gets shot/hacked into tiny pieces.

Wow. That sounded dark. Anyways, it doesn't have to be dark, but it does seem that would better fit the criteria I've given you.

DemonBlaze0: 3x3 Eyes has a suicidal protagonist? I really must have not gotten very far into it to have missed that. I'll restart that once I check out Dogs and Ningyo no Mori

Caitnap: I'll see if I can track that book down as soon as I finish Game of Thrones. I'll need a new book then 🙂

WhiteSpade: I think I would need to be in a very specific mood for Toukyou Akazukin, but I'll keep it in mind. Same with Yoru no Kakaku. I started Dear a while ago and then wound up stopping, but if you think that it fits the criteria of suicidal I'll have to restart that as well.

BlackOrion: Not so into the comic books, but Kurozuka is another one on my started an then paused list. I think that one could definitely be worth another look.

Pebble: Ah, Hellsing. Yes, that one definitely qualifies. I can't believe I forgot to add it to my list of Reading. I'll take a look at the tropes later.

Jlester: The reason I haven't looked into ones like that is because they weren't an immortal, but the one you suggested looks like it may be somewhat like what I've been looking for. I'll have to delve a little deeper into that catagory.

Mafuane: Film is fine. I was debating the merits of saying in my introduction that I'd accept anything else along with manga, but I figured that people would suggest them anyways. I'll definitely check up on that.

Hitokage: Doesn't the character in Absorb; Ability get himself cured? Maybe I'm misremembering, but I'm still already caught up on that. I'm sorry that I wasn't able to give an accurate list of what I've already read.

Saons: Yeah. I've watched Groundhog day. Thanks though.

Sir, I'm afraid you've gone mad with power.
Of course I have! You ever tried going mad without power? It's boring! No one listens to you!

Olimpos