Lust System: Architect of Ruin
##"Warning: This story contains dark themes, psychological manipulation, and R-18 content. Not for the faint of heart."##
Twenty years of service. A lifetime of being the shield for those who called him "trash."
Kaito Kiryu was the FF-rank "failure" of the 109 summoned heroes. While the S-rankers basked in glory, Kaito spent two decades mastering the laws of matter and science to keep them alive. He was the backbone of the Hero Party—until the moment the Demon Lord fell.
At the peak of victory, the "friends" he protected turned their blades on him.
But that wasn't the end, regressed back to the past, to not only destroy those who betrayed him, but to protect those who loved him.
But at the face of old terror new terror shows up, constant death and rebirth... Until his 4th life, this time With the power to manipulate Space, time and matter and a System that rewards the subjection of his enemies, the Architect of Ruin has arrived, to ruin the empire that once shaped him.
Follow Kaito/Yasha's descent as he dismantles the empire that never made him rest.
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Chapter: CHAPTER 37: THE POISONOUS AFTERMATH"Careful with that," Yasha said, his voice raspy but steady, deliberately keeping his panic in check. He kept his palms flat and visible against the hay bedding. "If you wanted me dead, you shouldn't have waited until I woke up."The elf’s grip on the hilt tightened, her knuckles turning white. Despite her lethal posture, a subtle tremor ran through her arms, and her breath came in shallow, uneven gasps. The residual flush of the aphrodisiac was entirely gone, replaced by a volatile mixture of fierce indignation and vulnerability."Who are you?" she demanded, her voice dropping to a harsh whisper. "And what did you do to me?""Saved your life, mostly," Yasha replied coolly, flicking his eyes toward the torn flap of the tent. "Unless you'd prefer to still be at the mercy of the elite goblins I had to clear out. The poison they hit you with didn't exactly leave room for a polite conversation."Her eyes flicked down to her own bare skin, then back to Yasha, the reality of the situation c
Last Updated: 2026-07-05
Chapter: CHAPTER 36: POISONOUS DESIRESShe slowly moved her head even closer, taking the length of his massive dick deep into her throat before sliding back down to lick his balls while her fingers wrapped tightly around his shaft, stroking it slowly. Yasha could feel the incredible heat and pressure from her mouth alone—a sensation unlike anything he had ever experienced. She moved with absolute precision, clearly craving his warm cum. Before long, his legs could no longer bear the tension. Driven by a sudden, intense surge of possession, he lifted her straight off her knees and carried her into the tent that had belonged to the elite goblins he had slain earlier, laying her down softly on the bed of hay at the center of the space. Yasha slowly traced his hands along her neck, dipping lower across her slightly exposed breasts. Her face flushed deeper with his slightest touch, caught in a hazy blur of submission. Whether it was the thrill of being so exposed in a tent with no cover—completely visible to any traveler
Last Updated: 2026-07-04
Chapter: CHAPTER 35: THE PRICE OF PURITYYasha didn't wait any longer as he instantly lunged himself forward like a released spring, his boots moving silently across the damp forest floor.His sword was aimed at the goblins, who were still distracted by their own cruelty, and their loud, creepy laughter drowned out even the slightest sound as he approached.The leader was already reaching for the tent flap when Yasha's sword struck him cleanly.Flash.His sword moved in a clean, silver arc, severing the leader's head before they could even realize they were under attack. The heavy body slumped into the mud, with thick, greenish blood gushing out of it.The remaining two goblins froze, their eyes widening in shock. But it was only for a brief moment. The mage among them recovered instantly, his hands glowing with a bright orange light as mana gathered around them.Pointing a crooked finger toward Yasha while shouting the activation incantation, he sent a torrent of molten fire surging through the air, hot enough to slightly m
Last Updated: 2026-07-03
Chapter: CHAPTER 34: THE SHADOW SOVEREIGNSixth Floor Boss Room.Yasha's hands pressed against the side of his abdomen, casting healing spells on the deep wound he got from the Boss's attack earlier.He didn't have the time to rest or wail about the pain. He had to keep moving, healing himself as he dodged incoming attacks."Left, three o'clock," Yasha shouted, his voice cold and loud, as his sword sliced through another Black Knight.Without a second thought, one of his shadows—a tall figure with an incredible physique that once belonged to a Sixth-Rank guard from the Dead Cross—lunged forward, catching the blast of demonic fire aimed at Yasha's heart with its own body.Although the attack sent him flying, it was as though its body had absorbed the massive attack and stored it, sending out a large burst of mana straight back at the demon.Sending him crashing against the stone wall.Before he could even recuperate, Yasha was already in the air, his boots using the jagged stone wall as a foothold to launch himself directly ov
Last Updated: 2026-07-02
Chapter: CHAPTER 33: THE HOLLOW CROWNInside a tavern packed with the thick air of intense cigarette smoke, liquor, and the odor from the unwashed bodies of different mercenaries. A kind of place where the best rumors that start as whispers move beyond control in less than a week, the birthplace of most rumors. "Did you hear?" one of them asked, his voice barely audible over the rowdy crowd. "They say the Dead Cross—the entire organization on the third floor—it’s gone. Wiped out in a single night." A man across from him scoffed, slamming his mug down. "Impossible. They have at least a thousand men on this floor alone, not even excluding the fact that they are made up of hundreds of Fourth-Rank Sword Experts and even the elite of the elite, a Sixth Rank. They also have connections to the deeper floors. There is no way a powerhouse like that was wiped out in just one night by someone on the third floor. It’s probably just a power struggle. A top-tier guild from the eighth floor must have come down to clean house." "That
Last Updated: 2026-07-01
Chapter: CHAPTER 32: THE ASHES OF REMORSESilas sat relaxed on the high-backed chair with composure, a rusted-looking dagger being twisted between his fingers, his expression displaying a victorious smirk. The room around him was far from silent, murmurs coming from the guards, some confident while others were frightened by the blood-covered sight of Yasha. Cries could be heard coming from the side of the room where Elara and the remaining two guild members were held at knifepoint. "I suppose," Silas said, his voice calm as he slammed the blunt dagger into the desk beside him, "that since we’ve come to an impasse, one of you has to go. I made a bet on that. Too bad he didn't come earlier." His fingers tapped slowly against the arm of his chair. Without Silas even looking back or uttering another word, the guard's blade instantly slit Mira's throat open. What followed was a horrific burst of noise from her twin brother, Jax. Raw, agonizing cries echoed through the room as Jax fought with every ounce of strength left in his
Last Updated: 2026-06-30
