It wasn't just for Naoki; Riu had also announced that today was Bell's final session under her tutelage.
The tragedy that struck the Third Unit at the hands of the Eight Thunder Gods had shifted everyone's priorities. With all her members currently undergoing intensive care, the weight of stabilizing their entire jurisdiction fell squarely on Bell's petite shoulders.
She now had to manage her territory alone—an overwhelming stack of duties for one person. She had to rescue survivors who accidentally slipped into Mato during localized disasters, cull the Shuuki roaming previously cleared zones, and intercept illegal infiltrators sent by foreign nations to steal Peaches.
In short, Bell was about to become incredibly busy—perhaps too busy for supplemental training sessions like this. At least until the Third Unit returned to duty, their wounds healed and their spirits rekindled.
Before departing, Riu looked at Bell with a rare flicker of genuine care, though her expression remained as stern as ever.
"Don't get lazy, Bell. At the very least, don't skip your routine exercises. I don't want to see you getting any weaker than you already are."
"Um. Bell understands!"
Bell nodded obediently, recognizing the affection behind Riu's gruffness.
Then, Riu left. The dojo was suddenly empty, save for a man who already had two girlfriends and a single woman.
"..."
Silence hung over the room like an invisible fog.
Bell stood frozen. Her feet felt heavy, as if rooted to the cold wooden floor. She heard Naoki's footsteps behind her—no, not footsteps. She could only hear the thundering of her own heart, filling every corner of the dojo with a sound only she could perceive.
She knew what came next.
Wasn't this what they always did?
Mental training... to ensure she didn't panic easily, to harden her mind so she could remain composed in any situation.
But why did her heart feel like it was going to explode every single time they started?
Bell bowed her head, her blue hair falling forward like a curtain to hide behind. She didn't dare look Naoki in the eye. Her hands trembled slightly when his fingers brushed her wrist. The touch was light, almost imperceptible, yet to Bell, it felt like an electric jolt racing from her fingertips to the crown of her head. She didn't resist when he gently took her hand; she didn't protest as he led her away from the main hall.
She let herself be led.
Her feet followed his lead, pacing through the familiar corridors. Past the sliding wooden doors with simple carvings. Into the changing room, where the wooden walls created an intimacy she couldn't escape.
Naoki stopped in the middle of the room, slowly releasing his grip. He looked at Bell, who remained standing with her head down.
"Are you ready to begin your mental fortification?"
Even without looking up, Bell could feel the intensity of his gaze, as if he were looking straight through her defenses.
"Um. Bell is ready. Please... look after me, Naoki-kun."
The answer was so faint it was barely a whisper. Bell wasn't sure if he had actually heard her or simply read her lips.
"Then, let's begin."
Without further preamble, Naoki moved.
His hands reached for her shoulders, touching the collar of the white karate gi. His fingers worked with a speed that was both efficient and surprisingly gentle—the movements of someone very accustomed to this task. The experience he had gathered from his interactions with Tenka and Yachiho had transformed him into an expert at undressing a woman.
The black belt around Bell's waist was undone in seconds, hitting the floor with a soft thud. The front of the gi was opened button by button, Naoki's fingers moving with surgical precision.
In less than half a minute, the heavy uniform lay discarded on the floor, leaving Bell standing there, trembling in only her underwear.
She stood before him in a simple white bra with delicate lace edges and matching panties. Her porcelain skin seemed to glow under the lights, contrasting sharply with her loose blue hair.
Reflexively, Bell squeezed her eyes shut and crossed her arms over her chest and lap in an instinctive attempt to shield herself.
"Open your arms, Bell. Don't hide anything." Naoki voice smooth and persuasive. "Remember why we're doing this. How can you cast aside the inferiority and shame that stunt your potential if you're still trying to hide? Here, you must learn to be proud of yourself."
Under the influence of his honeyed words, Bell's defenses slowly crumbled. With agonizing slowness, she moved her arms away, exposing her body completely to a man who, officially, was not her lover.
She stood there in just her lingerie, her small frame vulnerable, protected by nothing but thin scraps of fabric over her vitals. Her eyes remained shut, but her bowed head tilted up slightly.
Naoki offered a small smile, noting the progress.
"Are you ready to go further?"
The question was simple, but to Bell, it felt like a final exam—the threshold between staying in a false comfort zone or stepping into something new, terrifying, and perhaps liberating.
Her heart hammered so hard she was certain he could hear it. Her hands and feet were cold, but her stomach felt hot, as if a small fire had been lit inside her.
"Yes."
"Bell is ready, Naoki-kun."
Her voice came out stronger than she expected. Small and trembling, yes, but no longer a whisper meant to disappear.
Naoki nodded. His hands moved to her waist, his fingers hooking into the elastic of the white panties that served as her last line of defense.
With one smooth, practiced motion, he slid the fabric down. It glided over her slender hips and smooth thighs before pooling around her ankles.
Next was the bra. Naoki's fingers easily found the clasp at her back, undoing it with a precise flick. The thin fabric loosened and slid from her shoulders before she even realized it, adding to the heap of clothes on the floor.
Rich experience. That was what radiated from every one of Naoki's movements. He had done this far too often—with a mature, confident Tenka and a stubborn yet cooperative Yachiho. A woman's body was no longer foreign territory to him.
Bell's form was the definition of pure grace; her porcelain skin was now flushed a warm pink, her curves athletic yet possessing a captivating feminine softness.
She stood there—naked, trembling, but no longer hiding.
Naoki didn't waste the opportunity. He reached out, touching the soft, firm mounds with a caress that was both careful and possessive.
Shortly after, Naoki leaned down, burying his face against her and beginning to nurse at the reddened peaks with a deep, rhythmic pull.
Even though an overwhelming sense of shame was tearing through her mind, Bell didn't stop him. Instead of pulling away, she reached up and locked her hands behind his head, cradling him close. To her, the way he seemed so hungry for her felt almost endearing—like watching a large baby seeking comfort.
Yet, at the same time, Bell couldn't lie to her own body. A strange, searing heat began to spread from her chest down to her lower abdomen, creating an unbearable itch between her tightly pressed thighs.
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