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Chapter 15: The Covenant of Cuckoldry and the Idol's Retribution
Through the window, the living room lights were glowing. Seeing this, Yoshida—who had rushed home early from the office gripped by a faint, nagging anxiety—finally let out a sigh of relief.
If she was home, she was safe from most dangers.
"I'm back."
As he pushed the door open, a fishy, raw scent hit his nostrils.
"Hmm?"
He picked up a plastic bag left on the floor. Inside were ingredients like sea bream, tofu, and kombu; the ice packed with them to keep them fresh had mostly melted.
"Sayu?"
"Ah, Yoshida-san..."
"You're home."
Seeing Sayu walk toward him from the bedroom with an unnatural gait, Yoshida's relief turned into concern.
"What happened?"
The girl's expression was dazed, like someone who had just woken up. Her hair wasn't too messy, but her clothes were visibly wrinkled. Between her shirt and short skirt, a sliver of her slender waist was exposed.
Looking further down, one of the white over-the-knee socks she had been wearing that morning was missing. One leg was completely bare, and her toes curled against the floor, perhaps from the cold or some other reason.
"Are you feeling unwell?" Yoshida asked softly.
He didn't want to pressure her; everyone made mistakes. Forgetting the groceries at the entrance was a small matter, and Sayu wasn't a lazy girl. There had to be a reason.
"I..."
Sayu opened her mouth, but her mind was a total blank. Her lover's concerned gaze felt like needles against her back.
"Don't rush. Take your time."
"Actually, I..."
Yoshida pulled her into a hug, cutting off the words she was about to blurt out.
I just felt sick and took a nap... the groceries are ruined so let's eat out... but I need a moment to get ready... then I'll sneak past the sofa to hide Yaguchi's pants and coordinate our story while I change in the bedroom...
It wasn't impossible. But what then?
One lie would require a thousand more to cover it. One day, she would be exposed, and she had no way to prove her "purity"—her hymen had long ago been casually taken by men whose faces she couldn't even remember. It was an objective fact that she had just been entangled in passion with Yaguchi.
No, none of that mattered. What mattered was...
Feeling Yoshida's heartbeat, Sayu's consciousness cleared. The only thing that mattered was that she must never respond to this man's sincerity with a lie.
She pushed against Yoshida's chest and looked him in the eye, beginning her story.
She told him everything—from the chance encounter on the street to hiding another man in their bedroom. She held nothing back, recounting in detail how her body had reacted to seeing Yaguchi's member again, and how she had wanted to have sex with him.
Yoshida didn't look sad or angry. He kept his strong arms around her and listened patiently until she finished. Sayu leaned into his chest, waiting for the final judgment.
"I believe you."
Sayu wanted to cry.
"I believe you," Yoshida repeated, kissing the corner of her eye. "It's okay. Leave it to me. It's not a big deal."
Yaguchi was a veteran at manipulating women, and because Sayu was always thinking of Yoshida, she had been too overwhelmed to notice the inconsistencies.
"Why was he so obsessed with staying here?"
"Eh?"
Sayu hadn't thought about it. In the past, she had wandered from place to place, enticing men to trade their bodies for a temporary roof—she just wasn't as low as Yaguchi.
"You said he's greedy for money, right?"
"Yes, he is."
"And the girls he scammed before—how long did those relationships usually last?"
"Usually about a month before they broke up... hmm..."
Hearing Yoshida's words, Sayu began to realize. It made sense to lie his way in for one night, but why push to stay long-term? He had even mentioned pregnancy. It certainly wasn't out of infatuation with her; Yaguchi never lacked women and had kicked her out once before because she had no money for him to squander.
"He probably can't go back. He's hiding from someone. He's likely even afraid to stay in a hotel..."
Yoshida's logic began to close in on the truth.
Inside the Bedroom
"Dammit," Yaguchi cursed under his breath.
That stupid woman... what was the point of locking the door from the outside? It just stopped me from eavesdropping. The sound of turning the lock from the inside would surely be noticed.
The semen-filled sock lay discarded nearby. If they called the police, he'd be caught red-handed as an intruder. No, the guy probably wouldn't call the police; someone living with a high school girl was in the same boat as him.
But prison would be a mercy. If those guys caught him...
Yaguchi chewed his nails anxiously, having lost all the smug composure he had shown in front of Sayu.
"...So it's fine. He's probably more afraid of the police than we are."
After hearing Yoshida's analysis, Sayu felt a great weight lift.
"By the way... did you really want to have sex with him?" Yoshida's gaze suddenly shifted in a strange direction.
"Mmh, actually..."
Sayu took this chance to clear up the last misunderstanding. "Actually, I'm a bad girl. A bad girl who loves sex..."
Yoshida had always assumed Sayu's advances were her way of seeking security—that she was a girl so starved for affection she cherished even the smallest kindness.
"Sex feels so good. It feels different with every person; I feel like I'll never get tired of it."
A high school girl selling her body usually implies a tragic backstory, but sometimes, she just genuinely enjoys it.
"But after meeting Yoshida-san, I realized that 'loving' someone isn't just about wanting sex."
Unlike the men who treated her like a tool, Yoshida respected her thoughts and treated her as a human being with dignity. For someone who had lost her place in the world, that was her salvation.
"So it wasn't that I have special feelings for him. I just hadn't done it in a while... I was actually about to turn him down right before you came back..."
Then it was Yoshida's turn to bare his heart.
"Sayu, do you know what I'm thinking right now?"
Something hard pressed against Sayu's abdomen through his trousers.
"I was thinking... if only I had come home a bit later. If only I had opened the door to see another man's member inside you, right as he was climaxing."
"I wouldn't let that happen! Unless he forced me... wait..." Sayu gasped, staring at Yoshida. "I... I'm Yoshida-san's exclusive property, right?"
"But just the thought of you doing it with someone else makes me like this." Yoshida paused, unzipping his pants to reveal his arousal. "I was afraid to say it before. I didn't want to open your old wounds."
"It's okay! I was the same—I was afraid mentioning other men would make you jealous."
Sayu reached out and touched him. While his length and girth were slightly less than Yaguchi's, he was still impressive. She wasn't ignorant of cuckoldry, but Yoshida's relationship with Ms. Goto had made her never suspect him of having such a fetish.
"No matter how good it feels with someone else, you'll never leave me, right?"
"Of course! It's too late for you to regret it now, Yoshida-san. I'm going to stick to you forever."
"Then prove it to me." Yoshida made his first active request—something only a woman who truly belonged to him could do. "Go have sex with someone else for my sake."
The arousal Sayu had just managed to suppress began to flow again. It slid down her inner thigh, wetting the top of her remaining sock and forming a small puddle on the floor.
"Is it really okay? To have your love and still get to do it with others? I'm very lewd... as long as I don't hate them, I always want to try it once."
Happiness had come too suddenly. Sayu's eyes were misty as she hung around Yoshida's neck.
"Go."
No more words were needed. There was a perfect candidate right in the next room.
"Then... I'm going to go have sex with Yaguchi now."
Sayu stepped back. Once Yoshida was sure she was steady, he let go.
"But I'm still Yoshida-san's property. I'm just lending myself to him for a bit." She twirled a strand of hair. The idea of "permitted" infidelity was far more thrilling than a secret affair. "So, only thirty minutes. After thirty minutes, will you help me kick him out?"
"Is thirty minutes enough?" Yoshida and Ms. Goto usually took an hour. From the descriptions, Yaguchi was likely even more capable.
"Because I want to do it with Yoshida-san right after."
"I can wait. You can take as long as you want." The thought of Sayu and another man in his own bedroom all night made Yoshida's member twitch.
"I won't be that long. I don't really like the guy; it's just his equipment that's good. But..."
Sayu bent down, peeled off her remaining white sock, and stretched the opening over Yoshida's arousal.
"But if Yoshida-san wants me to take longer, I'll do it for an hour. While you're waiting in line, use this to keep yourself busy."
The thigh portion of the sock was soaked with her arousal, making it glide smoothly over him. Yoshida stood there, using the sock Sayu had just taken off, as he watched her walk toward the bedroom, glancing back every three steps.
Her hand finally touched the doorknob. Sayu took a deep breath, gave Yoshida one last shy smile, and turned the handle to enter the room they shared—to have sex with another man.
The door clicked shut and the lock turned. Even knowing it was probably just a habit and not meant to lock him out, the sound made Yoshida shudder, and a small amount of essence leaked into Sayu's sock.