Monday morning arrived with deceptive normalcy. Akira woke to his alarm, went through his usual routine, and headed to school with Mia clinging to his arm like always.

Everything seemed fine.

Until gym class.

Akira was in the middle of running laps when he noticed Rina on the sidelines. She was supposed to be running too, but instead she stood there, hands clenched at her sides, breathing hard despite not having exerted herself.

Her face was flushed, sweat beading on her forehead. Her eyes tracked him with an intensity that made his skin prickle.

"Kurogane!" Coach Yamada called. "Why are you standing around? Get moving!"

Rina didn't respond. She just kept staring at Akira, her chest heaving, and her whole body trembling.

"Darling, something's wrong," Ai's voice cut through his thoughts. "Rina's energy signature is spiking. Rapidly."

"What do you mean spiking?"

"Her demonic essence… it's destabilizing. The Soul Seed is…"

Rina moved.

One moment she was across the field, the next she was right in front of him, having crossed the distance in seconds. Her hand grabbed his wrist with bruising strength.

"Equipment shed. Now," she hissed through clenched teeth.

"Rina, what…"

"Now, Akira. Please." Her voice cracked with desperation. "I can't… I need… just come with me. Please."

Coach Yamada was looking their way now, frowning. Other students had noticed too, whispering among themselves.

"Fine. Let's go."

They broke away from the group, Rina practically dragging him toward the equipment shed at the edge of the field. The moment they were inside, surrounded by dusty sports equipment and the smell of old leather, Rina slammed the door shut and locked it.

"Rina, what the hell is going on? Are you sick or…"

She pushed him against the wall, her body pressing against his, her face buried in his neck. "I don't know. I woke up this morning and everything felt wrong. Hot. My skin is on fire and I can't think straight. All I can think about is you. Your scent. Your touch. I need…"

Her hand moved to his crotch, groping desperately.

Akira grabbed her wrist, stopping her. "Rina, stop. Something's wrong. This isn't you."

"I know it's not me!" She looked up at him, and he saw her eyes were glowing violet, brighter than they'd ever been. "But I can't control it. My body is screaming at me. I need to touch you. To taste you. To feel you inside me. And if I don't get it soon, I think I might actually explode or something."

"Ai, what the fuck is happening to her?"

"Scanning now. Give me a second."

Akira activated Lust Scan, focusing on Rina.

[LUST SCAN - TARGET: RINA KUROGANE]

[WARNING: SUBJECT IN CRITICAL STATE]

[AROUSAL LEVEL: 98% - DANGEROUSLY HIGH]

[EMOTIONAL STATE: DESPERATE (95%) + CONFUSED (78%) + PRIMAL NEED (99%)]

[PHYSICAL SYMPTOMS: Elevated body temperature (39.2°C), accelerated heart rate (145 BPM), excessive perspiration, dilated pupils, uncontrolled essence discharge]

[DIAGNOSIS: MANA FEVER - STAGE 2]

[CAUSE: Soul Seed requires regular essence consumption to maintain stability. Subject has gone 36+ hours without feeding. Demonic core is cannibalizing host's life force as substitute.]

[PROGNOSIS: Without immediate essence intake, subject will progress to Stage 3 (Feral State) within 2-4 hours, followed by potential death within 24 hours.]

[CORE DESIRE: "Give me seed. Give me essence. Fill me up or I'll burn from the inside out."]

Akira's blood ran cold. "Ai, she's dying?"

"Not quite, but close. The Soul Seed you implanted… it's from a Lust Queen, darling. It requires regular feeding. Specifically, it needs to either absorb semen directly or provide sexual pleasure to generate essence. Rina hasn't done either since that night when you bonded with her."

"You didn't tell me this!"

"What exactly were you expecting when you gave her a seed from a LUST demon?" Ai's voice dripped with sarcasm. "That it would run on sunshine and good intentions? Of course it needs to feed on lust-based essence. That's literally what it is."

"You could have still warned me!"

"I assumed you understood basic demon biology. My mistake for giving you credit."

Rina's nails dug into his shoulders. "Akira, please. I don't understand what's happening but I need you. Right now. I need to ride you or have you pound me into oblivion. I don't care which. Just make this stop."

Akira looked at her… really looked at her. Her skin was flushed almost red, eyes completely violet now, breathing ragged. She was literally vibrating with need, her whole body taut like a bowstring about to snap.

"Can I just give her some of my essence? Like, transfer it somehow?"

"You could, but that would only buy her a few hours. The Soul Seed needs a substantial feeding to stabilize. Either she needs to have sex with you, or she needs to feed from multiple sources. And given that option two would require her to seduce strangers while in this state..."

"Don't even finish that… I don't think I want to know."

"Exactly. So unless you want her going on a rampage through the school, fucking anyone she can get her hands on until someone calls the authorities..."

"Fuck." Akira grabbed Rina's face, forcing her to focus on him. "Rina, listen to me. I know what's wrong. The Soul Seed I gave you… it needs to feed. On essence. On... sexual energy."

"Then give it to me," she whimpered. "Please, Akira. It hurts. Everything hurts. I feel like I'm burning alive from the inside."

[SYSTEM ALERT: CRITICAL CHOICE POINT]

[RINA KUROGANE - MANA FEVER STAGE 2]

[CHOICE AVAILABLE:]

[A: EMERGENCY FEEDING - Have sex with her immediately to stabilize the Soul Seed. Risk of discovery is high, but her life is in danger. Reward: +500 PP, Rina's life saved, Bond strengthened, Mana Fever cured for 72 hours]

[B: CONTROLLED TRANSFER - Use advanced essence manipulation to transfer energy without full intercourse. Safer but requires concentration and may not fully stabilize her. Reward: +200 PP, Temporary stabilization (12 hours), Reduced risk of discovery]

[C: DECLINE AND SEEK ALTERNATIVE - Lock her in the shed, find Ayaka for help. Risk Rina going feral before help arrives. Reward: +0 PP, Potential catastrophic consequences]

[WARNING: Rina will progress to Stage 3 (Feral) within 2 hours regardless of choice if not properly fed]

[WARNING: Stage 3 Feral State will cause Rina to attack anyone nearby for essence, potentially exposing the supernatural world]

Akira's mind raced. Option C was out… too risky. Option B might not be enough. That left A.

They were in a shed during gym class. Anyone could come looking for them. But if he didn't help her now...

"Okay," he said quietly. "Okay. I'll help you. But we have to be quick and quiet. Understand?"

Rina nodded frantically, already pulling at his gym clothes.

He grabbed her wrists again. "And afterward, we're figuring out a better system for this. I'm not having you go into crisis mode every three days."

"Yes, yes, whatever you want. Just please…"

He kissed her, cutting off her words. She melted against him, moaning into his mouth, her body pressing closer. He could feel how hot her skin was through their clothes, like she had a fever.

Which, technically, she did.

His hands slid down to steady her trembling hips, and she wasted no time wrapping her legs around him. The way she moved wasn't just desire… it was pure, primal survival, her body chasing any scrap of friction to dull the burning ache that threatened to consume her.

"Please," she whispered hotly against his lips, her voice breaking with need. "I'm wet already. Don't make me beg any more, just take me."

Akira's mind spun with the weight of it all: the Soul Seed's power was insane, but this endless hunger for feeding? It was going to become a serious problem for them if they didn't figure it out.

Still, he couldn't deny her, couldn't ignore the way her body called to him.

His fingers moved, slipping between her wet thighs to find her dripping entrance. He teased her at first, circling the sensitive rim with one fingertip, feeling her clench and quiver in anticipation.

Then he pushed inside… slowly and deliberately… two fingers sinking into her tight, wet heat, her walls gripping him like a vice as she gasped sharply.

"Fuck, Rina," he murmured, his thumb finding her swollen clit and rubbing firm, insistent circles while he pumped his fingers deeper, curling them to stroke that sweet spot inside her that made her arch and moan.

She was soaked, her arousal dripping on his hand, the obscene wet sounds filling the air as he fingered her faster, building the rhythm to match her frantic hips bucking against him. Her breaths came in ragged pants, her nails digging into his shoulders, leaving red trails on his skin.

She came apart almost too quickly, her orgasm ripping through her like wildfire. She cried out against his shoulder, biting down to muffle the scream as her pussy spasmed around his fingers, clenching and fluttering in waves that left her shaking.

But even as the pleasure peaked and ebbed, he could feel it… the Soul Seed wasn't satisfied. It craved more, something deeper, something only he could give.

"Akira," Rina gasped, her violet eyes locking onto his, hazy with lust and desperation. "That felt so good, but it's not enough. I still ache so deep inside. I need you buried in me, fucking me hard. I need your cum filling me up. Please, give it to me."

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