I am that male friend in the harem story

As the morning came, the four were in a mess with their clothes completely torn, their hair stuck on their faces, and their naked bodies tainted by a cloudy liquid that hadn't originated from themselves. 

Yes, they were exhausted, but the bliss was clearly shown on their face. 

Meanwhile, the one who had caused all of this was in the gym, working out, trying to drain his energy since he had to say being young and healthy was quite troublesome as he would get excited every moment. 

Not only had his body improved, but his skill increased further as he faced more challenges. 

If they were normal men, they would have dried up and become husk-faced the moment they faced the four women, and if they wished to preserve their pride, they could only consume doping to help their performance. 

However, Ishigami's body was strong and young, so along with the help of the system, he was a monster among men. 

Yet, it was like a vehicle that needed to be maintained, whether it was by changing the oil or something else. It was the same with his body, and if he wanted to maintain his body, it was natural that he had to work out with discipline, or else everything would crumble as he faced those challenges. 

'Unless I get a reward that can improve my body's fitness.' 

Unfortunately, Ishigami couldn't imagine that any heroines in this world could give him such a reward. The closest abilities he had that could be used to maintain his body were either the "Fast Learner" he got from Iino or the "Electrical Manipulation" he got from Hayasaka. 

While it was strange for him to mention the two, the "Fast Learner" allowed him to learn various fitness skills that helped him to maintain his body efficiently and improved the level of his skills much faster. 

On the other hand, "Electrical Manipulation" was the ability to use his bio-electricity to control electrical devices, which could also be used to massage his body with electricity with his body. If Masa had to say, it was like how the work of electrical muscle stimulation (EMS), which allows one's muscles to grow stronger through electrical stimulation.

Regardless, he knew that he needed a good workout and then also a good rest. 

Fortunately, his sleeping skill was about to reach level 4, which made his sleeping easier, and he was able to recover faster, so he didn't need a long time to rest despite fighting a powerful challenge last night. 

'It's good I have a system.' 

If not, once again, Ishigami knew that he was as good as dead since even if his skill in that area was high, facing four bloodthirsty vixens was quite tough for his body. 

'And they are not the last ones.' 

When he thought so, he knew that he needed to make his body stronger than ever. 

At the same time, when he was working out, Chika, who decided to rest at home, was troubled by a certain problem. 

"Nee-chan, aren't you going on a date? Yuu-nii won't go out with you on the weekend?" 

"Moeha, shh! Shh! What if our father hears you!" 

Chika wanted to cry because of her persistent little sister. 

"I know! I know! But isn't it strange that you don't go out on a date? You haven't gone to that step yet?" 

"...just ask, what kind of a step?" 

"Sex?" 

"....." 

Chika looked at Moeha, who was looking at her with such an innocent gaze, yet the words that came out from her lips were far from being innocent. 

Still watching Chika, who was all calm, Moeha was dumbfounded. "Ah, you did!" 

"...." Chika. 

"Nee-chan did you—"

"You two, what are you talking about?" 

Their bodies subconsciously tensed when they heard this voice, but at the same time, and as naturally as possible, they said, "Nothing!" 2x

"Hmm?" 

Only their older sister, Toyomi Fujiwara, narrowed her eyes, watching her two naughty little sisters appear to hide something from her. 

Meanwhile, Ishigami, who had finished his workout, went to take a bath after his body had cooled down enough. As for the four of them, they slept well, and he didn't intend to wake her up as they were exhausted, whether it was from a trip or from their heavy exercise last night. 

Yet, he forgot that a certain naughty cat was woken up when he went out to the gym, so when he returned, that naughty cat opened her eyes and slipped into the bath as she gazed into his naked body, which was all wet from the water. 

At that moment, her eyes couldn't look away from his body, which appeared dazzling from the light and water, causing her to drool for a moment before her desire took over her. 

Ishigami didn't realize anything as he sang and washed his body until something touched his lower body and made him die. 

"W-Who?!" 

How did it feel when something suddenly grabbed your lower body? 

He thought to kick, thinking it was an animal, but when he discovered the one who touched him was still an animal, he knew he couldn't kick her. "Miko? Did you just wake up?" 

"Um~!" Iino was naked and was also drenched by water from the shower, but she joined him and helped him to wash his body. "I will help you wash your body." 

"...are you really washing my body?" 

"What do you think?" 

"...it's still early in the morning." 

"Just enjoy, okay~?" 

"W-Wait, Miko—"

While Iino was slightly pushy, Ishigami could only groan helplessly as he sighed in comfort and felt an incredible comfort on his lower body. 

Yet, watching his expression, Iino became even more excited as her tongue danced in a way that wasn't suited to her status as the most honorable and strictest student in the school, which made this situation even harder for him to calm down. 

It was said that the one that was unlikely to appear as one was usually a pervert. 

Those straight-laced types usually had their desires suppressed, so when they released them, those desires... were simply unstoppable. Fortunately, Iino was still within his range limit, but he didn't realize when he faced Iino; he didn't realize that Onodera, Tsubame, and Kobachi had also woken up before they joined Iino to fight him together, causing more carnage within the hotel. 

Yet, such a day on the Yokohama strengthened their feelings and confirmed what they wished to be with him despite their relationship not being accepted in the eyes of the norm. 

However, this was their choice, yet even so, while they wished to stay for a long time in Yokohama, they had to go back, especially the next day when they had to go to school. 

Yet, unlike before, Ishigami was filled with anxiety and tension thinking about what would happen at the school. This time, he no longer felt such feelings. Instead, he was calm and fully relaxed as he had solved the problems before him, but why did it feel like the problem hadn't ended yet? 

---

Just ask, do you know a game that has a low budget but creates a large profit like "Flappy Bird"? 

If you know, please comment here for further reference.

Smartphones, PCs, or others don't matter as long as you know; please give me a comment. 

Thanks!