My Little Brother's Best-Before Date

The little brother is adorable while he's in his cute phase.

But sadly, that phase has passed, and he's making his grand entrance in truck-kun form!

Maki is a little brother.

Yes, literally a little brother.

As a plot NPC, his job is to be a good little brother: fuss over his older brother every day, then get left behind by him at all sorts of inexplicable moments, and finally...

Die with a snap.

...Wait, wait, wait! This isn't how the story is supposed to go!

As he was about to die after being abandoned by his brother for the fifth time...

"Crack."

Something in his head snapped.

The first time he'd been left behind, it was an accident. The second time, it hurt. By the third and fourth times, he'd gone numb... But the fifth time?!

Did they think he was a disposable tissue? Use him and throw him away, then pick him up again when the plot needed someone to wipe away the tears, only to toss him out again?!

His life flashed before his eyes. The backs of his first four older brothers, each leaving in a different way: tragically, solemnly, or without a backward glance. And every time, his own ending was different, but always the same.

Seriously, do all you older brothers have some KPI to meet for abandoning your little brothers and then patting yourselves on the back about it?

Whoever wants this lousy NPC job can have it. He's done!

From today on, his job is no longer to be a good little brother!

A brand-new idea, shining with a blinding light like a dump truck's headlights, rumbled through Maki's mind:

He was going to bring his brothers back! By tying them up, tricking them, or dragging them home if he had to!

No one was getting away!

--

Uchiha Itachi gave everything for Konoha, including himself, but he could never let go of his two little brothers.

When he was ready to die peacefully, the little brother who had always been the most obedient suddenly appeared. Maki pulled out a White Zetsu and a scroll.

"Big bro, hurry up and die so I can use Impure World Reincarnation to keep you tied to my side forever."

Itachi: ...Maybe I can still be saved.

Dazai Osamu can keep track of everything, but he can never figure out his own little brother.

As he walked toward the river at dusk once again, Maki sat on the bank, holding a megaphone and playing on repeat:

"Big bro, if you jump in again, I'll show all of Yokohama your childhood photos in a dress."

Dazai: ...The water suddenly feels a little cold.

Geto Suguru sat deep inside the Star Religious Group, waiting to hear the prayers of his followers, a compassionate smile on his face.

The door opened. But the person who walked in was the little brother he'd once wanted to kill with his own hands.

Maki raised an eyebrow and pulled a cursed womb from his clothes, spinning it twice between his fingers.

"Big bro, how's your grand cause going? Need a hand?"

Geto Suguru's smile froze.

"...What are you holding?"

"This?" Maki glanced down at the cursed womb in his hand, then looked up and smiled. "Something to help you achieve your ideals faster."

Geto Suguru: "..."

He suddenly wondered if he'd made that decision too hastily back then.

Kokushibo abandoned everything in pursuit of the ultimate swordsmanship, but in the shadows of the Infinity Castle, he came face-to-face with a smile all too familiar.

His little brother, who should have died four hundred years ago, was still alive, standing right in front of him with a smile.

Maki rolled his wrists, beaming.

"Well, well. One after another, you all just ran away from home without saying a word, huh?"

Kokushibo's breath caught.

The person smiling before him had the same face as in his memories, yet every instinct told him to be wary.

When the brothers who had resolutely left for the sake of duty, ideals, or obsession discovered that their once-obedient little brother had suddenly come barreling after them in a dump truck, the story finally started going off the rails.

Before you read: The male lead is a little crazy, a little obsessive, and extremely, extremely powerful.

Theme: Respect one another