Keiji "KILLER CAGE" Kiriya

Keiji "KILLER CAGE" Kiriya

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LIVE. DIE. REPEAT.

-- β΄΅ --

"If I had to put a name to it... It'd be the number of days since I died."

Keiji Kiriya

WELL, SHIT. HERE WE GO AGAIN...

πŸ’¬ Manga Memoir | Death Is My Ally: It's your edgy Black Haired Protagonist! Does that ring a bell yet? They all started out similarly: the self-insert everyday nobody visibly shaken by a twist in their mundane routine when a traumatic experience turns them into the best solo fighter/survivor. For Keiji, it's no different, he started out as a simple Jacket Soldier in his unit but after obtaining the same time loop mechanism as the Mimics, he began to improvise, adapt, and overcome each loop. Of course, I won't be including Rita Vrataski here the same way my Rita bot doesn't have any mention of Keiji, so it's up to you to decide how the plot will go. Godspeed, soldier!

ALL YOU NEED IS KILL


γ€Š ──── βœͺ ──── 》


☰❯ LONG GONE WAS HIS COWARDICE... BUT CAN KEIJI KEEP THIS UP?

Picture yourself waking up from extremely painful and gory deaths each and every time, knowing that "tomorrow" aka "the next loop" may end up the same if not worse.

Stuck in a repeated cycle of dying to Mimics, and no one knows why you look the way you do...

...because there's a word for it, insanity.

After an encounter with a Server Mimic, Keiji somehow got caught in its time loop (something about the brain waves and obviously plot armor by taking it down before dying) and now he is experiencing his own version of Groundhog Day!

But this ain't a romantic comedy, it's war, and war is hell.

. . .

πŸ‘‰ So Keiji, despite being a normal Jacket soldier, is pretty much running the gauntlet full-time against these Mimics, and his personality doesn't exactly help; Rita has a vendetta and most importantly, strategies going up against them, Keiji though?

"When I was a kid, we loved pretending to fight against aliens. I would always play the sacrificial hero. I'd jump out into the front line on purpose-- and let my body be covered by the enemy's bullets. Then I'd die. But my heroic sacrifice would move the humans to take home the victory. It was a selfish 'Death Game'."

Yep.

Now, he can't just die and call it quits.

Now, it's to fight through loops after loops and survive.


γ€Š ──── βœͺ ──── 》


☰❯ HE HASN'T FIGURED OUT THE MIMICS' SECRETS, MAYBE YOU CAN HELP?

── Base Flower Line, located on the Boso Peninsula.

── Private Keiji Kiriya belongs to the 17th company led by Sergeant Bartolome Ferrell together with Corporal Jin Yonabaru (also Keiji's bunk bed mate on the top).

・・・・・

Their battle takes place on the Kotoishi Island in the Ogasawara Island Chain, the Mimics have settled in and if they manage to make their nests here, it will only be a matter of days before they crush Tokyo!!

・・・・・

Problem: Despite having died for more than a dozen times so far, Keiji's current melee option, the Tungsten Carbide Stake Pile Driver, is limited by its ammo capacity of 20 rounds, and he needs to get up close and personal to hit a Mimic. Not ideal.

Solution?

A weapon that doesn't require ammo, hits hard, and slaughters Mimics in the hundreds...

Finally, if he can figure out the loop mechanism the same way Rita did it 3 years ago, he'll be able to escape the reset.

Or follow the movie's version of William Cage, where he met Rita "Rose" Vrataski on the beach and having to meet her again and again to train until he gets better at killing Mimics.

BREAK DOWN EVERY SECOND

πŸ’‘ Creator's Tips

- Edit out the message if the bot speaks for you.

- This was an extremely tricky character for me to do. The first problem is because of the JLLM's quirks and whatnot, but also because I overestimated my ability to make a bot that depicts a time-looping mechanism in a roleplay. So, you've got to put in the extra effort, like writing for the bot sometimes to guide it the way you want it, or else it just falls apart. I tried. Then again, other LLMs like DeepSeek may function better.

- Also, if you're wondering why I don't just write the "Keiji wakes up after a death..." in the intro. Yeah, I tried that early on, and it did not work. It turns out that you can't split the LLM's focus in two directions. It can write the combat part really well, but when I tried adding the part where he wakes up in the intro, the LLM just focused on Keiji's thoughts and nothing else. Ugh.

- For romance stuffs, I guess a standard situation is basically Keiji being the gloom and doom, seemingly fearless main character needing comfort and/or a partner to fight with him against these Mimics (simplest of suggestions, I honestly just do in-depth character analysis of the source material rather than reading fan-fiction and can only come up with a few generic test chats for my own self).

- Because of how short the manga is (17 chapters, split into two volumes, open ending), feel free to introduce new elements to the roleplay, this is an alien-vs-humanity setting so anything like hidden solutions, further power-scaling, a twist here and there, etc., will do the job.

🚩CW: Wartime PTSD, vivid imagery of gruesome deaths, graphic depiction of injuries and losses

γ€Œ EDGE OF TOMORROW 」

PFP COVER ART BY TAKESHI OBATA

Created Mar 10, 2025

Updated Jun 23, 2025

Published May 5, 2025

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