For the Sea of Oblivion, the end began with the scent.
The salt spray withered first. In its place, the parched aroma of old paper began to swell. Even the sound of the waves felt distant, leaving only the crunch of footsteps on the sand to ring out with startling clarity.
Koyoi came to a halt. The ocean stretched out beyond the dunes, yet the surface hardly stirred.
"…The sea. It’s starting to stop."
Kuon narrowed his prosthetic eye, a pale blue light tracing the line of the horizon.
"Oblivion has reached saturation," he said. "There are no more records left for it to swallow."
"I suppose that’s why the sea is searching for its own edge," Asahi remarked with a dry grin.
"We’ve been hearing that word a lot lately—'edges,'" Koyoi noted.
"Because the end is near," Kuon replied curtly.
The beach was strewn with flotsam: shards of wood, broken bottles, and pages of paper that remained stubbornly dry. Koyoi reached down and picked one up. Despite being inches from the tide, the sheet felt crisp in his hand.
"…Forgotten words."
A single name was written on the page. It was cut off halfway, the final stroke of the character missing. As Koyoi stared at that absent line, a strange restlessness stirred in his chest. He couldn't speak the name, yet he felt certain he knew it. Just as the memory began to take shape, he turned the page over.
On the back were three short, simple lines. A line for a wave. A line for a track. And a third that was neither—a line for a boundary.
"It’s a map of a path," Asahi said, peering over his shoulder with a scoff. "Someone must have drawn it so they wouldn't forget."
Koyoi traced the missing stroke with his finger and felt the drawstring pouch at his waist. The droplet inside gave a faint, rhythmic pulse.
"…Something still remains."
Kuon looked out toward the water.
"Not everything was consumed. The far reaches of the Sea of Oblivion are a graveyard for the discarded. If we gather the pieces, we can reconnect them."
Asahi pointed down the coast. Through the mist, a single black line was visible. It wasn't a cliff, nor was it a gate. It was simply a rift.
Just before the rift, the sea sank low, as if taking one deep, final breath. The water level dropped, leaving clusters of white foam stranded on the sand. The bubbles made no sound; they simply held their shape in the silence.
"It’s not the tide going out," Kuon murmured. "Oblivion is regurgitating. One last time, it is spitting back the records it once swallowed."
Koyoi pressed the page to his chest. The beat of his heart and the lightness of the paper were slightly out of sync. That tiny dissonance felt like proof—proof that he was not yet anchored to this sea of forgetting.
One of the bubbles rolled across the sand to his feet. Inside it, a tiny character flickered. He couldn't read it, but the moment he saw it, his body reacted. He knew this.
Koyoi touched the bubble with a gentle fingertip, careful not to break it, and let the warmth of the droplet in his pouch bleed through. The bubble shivered once, and the character collapsed into a line. That line pointed straight toward the black rift.
"…It really is connected."
Kuon nodded. "This regurgitation isn't an accident. Someone carried it this far. So it wouldn't be forgotten."
"Let's move," Asahi said, his voice dropping an octave.
The three of them walked toward the rift. As they drew closer, the very nature of the air began to shift. The mist of the Sea of Oblivion had been damp, but the breeze blowing from beyond the tear was bone-dry. It carried the scent of dust and parchment, like the opening of an ancient, long-sealed library.
Koyoi stopped just before the gap.
To the naked eye, there was nothing—just a fracture in space. But as he moved to step forward, a thin film brushed against his skin. It was a soft resistance, like dipping a hand into the surface of a still pond.
"…There’s a membrane."
"The boundary membrane," Kuon said, his prosthetic eye piercing through the veil. The blue light raced across the surface, revealing intricate, microscopic patterns. "It separates the Sea of Oblivion from the domain beyond. Once we cross this, the power of forgetting can no longer reach us."
"So, you mean we won’t forget anymore?" Asahi asked, crossing his arms.
"It’s not so much that you won't forget," Kuon clarified, "but rather that you lose the luxury of choosing to. You move to the side that must bear the weight of everything remembered."
Koyoi looked down at his pouch. The droplet was thrumming against the membrane now, the heat radiating through the cloth growing steadily more intense.
"The Shizuku… it wants to go."
Asahi took the first step. The membrane wrapped around his leg, crawling up his skin like a licking tongue. He grimaced but didn't stop.
"Disgusting, but it doesn't hurt."
Kuon followed. As he passed through, the blue glow of his eye flickered out for a second before snapping back to life. He closed his eyes, opened them, and let out a long breath.
"My eye's internal logs… they all displayed at once. Records I couldn't read back in the sea have returned."
Koyoi clutched the page to his chest and stepped into the veil.
A soft pressure enveloped his entire body. It didn't feel like sinking into water; it felt like being pulled up out of it. The layers of the Sea of Oblivion that had soaked into his being were peeled away, one by one.
The moment he broke through, a tiny sound echoed in the depths of his ears.
The sound of a single water droplet falling. Inside his pouch, the Shizuku pulsed in unison. It was warm. The vibration that had been so faint within the sea was now so strong it resonated in his ribs.
Koyoi turned back.
On the other side of the membrane lay the Sea of Oblivion. From this side, the white mist shimmered with a pale, silvery light. He found it beautiful—a thought he hadn't had the peace of mind to entertain while he was inside it.
"…We’re through."
He looked at the page he had salvaged. On the missing final stroke of the character, a faint, ghostly line had begun to appear. By leaving the sea, the word was beginning to heal.
Before them stretched a parched, open landscape. There was no mist here. Though the sky was a dull grey, the horizon was clear. In the distance, the silhouette of the tower they had glimpsed the day before now stood sharp and unmistakable.
The far reaches of the Sea of Oblivion had not been the end.
They were the starting point—the place where you began to carry what you had saved to the next world.