"Moreover, the quality and quantity of the mana will definitely satisfy your needs."
As Hikari spoke, he gently pulled Eririn's slender yet fleshy waist into an embrace, releasing his own goodwill.
After all, this summoned succubus in front of him hadn't shown any hostility towards him from beginning to end, but instead had always been very friendly and intimate, so Hikari naturally would reciprocate the favor.
Having an extra friend meant an extra path, and Hikari wouldn't refuse having an extra friendly and loyal succubus friend; after all, it could be considered as having gained a new succubus path.
And upon hearing Hikari's promise, Eririn's beautiful eyes immediately lit up, "Thank you, Master! You're so kind, Master!"
After the preliminary tasting just now, Eririn had already confirmed that the quality of Hikari's mana was quite superior.
Furthermore, not only was its taste absolutely marvelous, but the reserves were also quite rich, comparable to those legendary Grand Magus.
So regarding Hikari's promise, Eririn didn't doubt it in the slightest.
And in order to express her submission and gratitude, she even changed how she addressed him.
From Lord Hikari, it changed to a more intimate "Master" that possessed a stronger sense of belonging.
The reaching of this agreement could also be considered a sign that their relationship had progressed a step further.
And Hikari could also hear Eririn's attitude shifting along with the change in address, and he nodded in satisfaction.
He continued, "Then the second requirement is that you cannot casually use your succubus powers to wreak havoc in the human world."
"For example, maliciously bewitching others, or harming others without reason."
"Of course, when you might get hurt or the other party shows obvious hostility, you can also counterattack at will; you don't need to hold back at all."
To this, Eririn had no objections at all, and even proactively stated, "Please rest assured, Master. Eririn is not that kind of evil existence. From birth until now, I have never harmed others."
"Moreover, from now on, I will only replenish mana with you alone, Master, so I won't affect others either~"
Looking at her fawning appearance with the small horns on her head trembling slightly and her heart-shaped tail wagging, Hikari reached out, pinched the horns on her head, and praised, "Very good!"
"Kya~!", It seemed the horns on her head were a bit sensitive. The moment Hikari's hand touched them, he felt Eririn's delicate body tremble slightly, and a sweet, sugary hum squeezed out from her throat.
"What's wrong, does it make you uncomfortable when I touch here?", Hikari asked Eririn curiously.
"N-No, it's not uncomfortable~", Eririn's cheeks flushed red, and she looked at him with moist, beautiful eyes, "It's just that I've agreed to all of Master's requirements just now."
"Shouldn't Master... also replenish my mana now?"
Eririn tightly embraced Hikari, raising her head slightly, staring intently into his eyes with a gaze as alluring as silk.
"Okay."
As his voice faded, Hikari returned the gesture, embracing Eririn with equal force.
Preparing to conduct the first mana replenishment for this rookie succubus...
———
Have you ever seen Tokyo at 4 AM?
Hikari, who had been busy replenishing mana all night, had successfully seen it.
Around four or five o'clock in the morning, the skyline of the Tokyo Metropolis was still a dead, leaden gray.
Some miserable corporate slaves had already climbed out of bed with difficulty, preparing for a new day's labor.
Meanwhile, Hikari, who had been toiling away replenishing mana with the succubus Eririn all night, was just about to shed his fatigue and go to sleep.
The bathroom door was gently pushed open, and hot air laden with water mist rushed out.
Hikari walked out while drying his wet short hair; water droplets slid down his well-defined shoulders and neck, falling into the folds of his cotton bath towel.
The hot water had thoroughly washed away the sweat on his body and the residual stickiness from the mana replenishment. The moment his skin touched the slightly cool air, a refreshing shiver shot up his spine, and his whole body felt much lighter.
He paced back to the bedroom; at this time, it was already empty.
When Hikari raised his eyes to look at the bed, a trace of expected calm swept through the bottom of his eyes.
The messy bedding was completely empty; the succubus Eririn had already left.
Thinking back to last night, ever since the two of them reached a consensus with the three-point agreement, he had begun replenishing Eririn's mana.
Eririn, who had never tasted the flavor of mana before, had an almost greedy thirst for this pure and abundant energy.
And it just so happened that the mana within Hikari's body was incredibly immense.
With supply and demand perfectly matched, the two hit it off instantly, directly replenishing mana for nearly the entire night.
It wasn't until dawn was approaching that Eririn finally said she was completely stuffed and couldn't eat any more.
Hikari's mana had also been largely consumed, so when he heard her say she was full and wanted to leave, he didn't try to stop her, instead turning around and entering the washroom first to freshen up.
By the time he came out after washing himself clean, the succubus Eririn had already left beforehand.
She had probably cast some succubus magic; just as she had been summoned, she left without a trace.
However, in the room right now, there were still clearly preserved traces of her prior existence.
Hikari focused his gaze on the bed; he could see a very obvious plum blossom pattern drawn on the pure white bedsheets.
Judging from this bright and dripping radiant red plum blossom, it was indeed Eririn's first time replenishing mana; she was a rare, pure-hearted succubus.
Of course, Hikari had also heard that certain succubi could perfectly repair their own cells and connective tissues.
Just like a certain surgery some human women get at hospitals, making every mana replenishment seem like the first time.
But Hikari was no fool either.
Having been forged through a thousand trials, he could already be called a Grandmaster in the field of mana replenishment.
Eririn was truly replenishing mana for the first time in her demon life.
Or rather, if she was merely replenishing mana for the first time today.
He could still distinguish between the two.
However, this brought up another question.
Eririn, who claimed to be a rookie succubus, looked so identical to Morita Eri, the mother of his classmate Morita Takashi, with their facial features having an over eighty percent similarity.
To say that the two had absolutely no connection and it was merely a coincidence would truly be a bit of self-deception.
But Eririn was genuinely a pure-hearted succubus replenishing mana for the first time; not only was there the plum blossom mark as proof, but there was also that unfakeable rawness and helplessness.
This kind of performance was completely incompatible with Morita Eri's identity as a married housewife who had already given birth.
So then, what exactly was going on here?
Hikari suddenly recalled that at the time, after Morita Takashi had rudely whistled at Kaede and Suzu, Morita Eri had once said, in order to express her apology, that they could come visit her home as guests anytime.