I am that male friend in the harem story

"Ah, Ishigami-san?" 

When the girl turned, she was startled when she saw the familiar face, the junior of her big brother, the one that had seen her in lame clothes previously. 

"You are... Kaichou's little sister, right? Shirogane Kei-chan, right?" 

While using "-san" might be polite, Ishigami felt that it felt a bit too formal and awkward if he called Kei with the "-san" suffix, considering her status as Shirogane's little sister. 

"Ah, um, yes, Ishigami-san! Ah, should I call you Senpai?" 

After all, Ishigami was a high school student and was also her senior in her high school, so Kei thought to call him "Senpai." 

"Senpai..." 

Ishigami murmured and never thought that the ringing of the word "Senpai" would be so wonderful. Knowing this feeling, he somehow understood why Tsubame's inside tightened when he called her "Senpai." 

Yet, he definitely couldn't express this thought of his, even though he could tell that Kei was a gentle and kind girl, and probably, she wouldn't judge him even if he felt a strange sensation on his body when she called by her "Senpai." 

Probably, she would just look at him in silence, with a mix of disgust! 

Wait! 

'Why am I so perverted?' 

Even though he felt regret for many things he had done, he had to say that it was hard for him to erase this nature of his, who sought to get close to a beautiful heroine. 

"Sure, you can call me Senpai, but do you mind if I call you Kei-chan?" 

"Ah, no, it's fine..." While Kei was shy, she thought that since Ishigami was called by her first name, should she call him by his first name?

While they had only met each other, she had heard Ishigami from her older brother, and she knew how close Ishigami and her big brother were.

So—

"Yuu-senpai..." 

Her voice was soft and gentle, and her pink lips slightly parted, showing her white teeth, when she called his name. 

Ishigami almost staggered, feeling strange inwardly, but he decided to calm himself and appeared nonchalant since he could see that Kei was embarrassed to call him by his first name, so what he had to do as someone who was older was to stay calm, as if telling her that there was nothing strange about how they called each other. 

"So, what's wrong?" 

When he approached Kei, he looked at her bike and quickly noticed the problem. "Oh, is it the chain?" 

"Yes." 

While Kei was a little shy when Ishigami approached her, considering how handsome he was, some curiosity within her heart, she couldn't help but express her trouble when he asked. 

"Let me help you. You should also watch it closely, so in case something similar happens, you can handle it." 

"Ah, yes!" Kei quickly nodded and agreed. "Thank you, Yuu-senpai." 

"It's fine. Kaichou helped me a lot, after all." 

Shirogane had helped him a lot, so why shouldn't he help Kei?

Still, with his skill, it was easy for him to fix the chains on Kei's bike, and Kei quickly understood how to fix the chains on her bike in case something similar happened due to his easy-to-understand explanation. 

More importantly, similar to her big brother, her IQ wasn't low or even better than Shirogane. 

"Thank you, Yuu-senpai." 

"It's fine." 

However, Ishigami had noticed that many had passed Kei before, but no one was willing to help her. While it was cold, when he looked at his dirty hands, he knew well why no one was willing. Fixing chains meant that one's hands would become dirty by the oil, and it wasn't easy to wash the oil when it stuck on them. More importantly, they were either going home from overwork or just on their way to work. Either way, their positions really didn't give them any leeway to help others. 

It wasn't like he blamed them, but then again, this was a chance for an encounter to know a beautiful girl like Kei, yet no one was willing. 

Still, when he saw Kei's middle school student uniform, he became sober and understood everything. 

"Ah, yes, please use this. Wipe your hands with this." 

Instead of wet wipes, Kei took out her handkerchief and gave it to him. 

"...it's fine. It will make your handkerchief dirty, and I can buy wet wipes at the convenience store or wash my hands at school later." 

"No, please take it. You don't have to wash it. You can return it to me later." 

While Ishigami wanted to refuse, when he looked at Kei's eyes, he nodded. "Thanks." 

"No, it's fine." 

Kei, who had shown a serious expression, suddenly smiled softly. 

Ishigami also smiled softly, but this caused Kei to blush. 

"...." 

Watching this, he realized the effect of a "Double Charm" was much greater than he had imagined, but then again, when he thought about what Onodera did on their first date after they met for the first time after he accepted this reward, he knew that his life was impossible to be a single guy and there would be many temptations in his life! 

Yet, no matter what he struggled with, he would do his best! 

Wiping his oil-stained hands with Kei's handkerchiefs, Ishigami decided to invite her to go to the school together, to which Kei agreed. The distance between the high school and the middle school of the Shuchi'in Academy was close, and they could reach each other in five minutes. 

The two of them had also come quite early, and based on their speeds, it was okay for them to go to the school together. 

More importantly, he also wanted to know Kei better, talking about her school life and how she worked on the student council. 

Yes, similar to him, Kei was also a student council member, and like him, she was also a treasurer. 

As for the matters of her home, Ishigami decided not to say anything since he knew well that even if Kei might not be shy about her family's matter, telling it to others was a different matter. 

"It's amazing that you came so early to work for the student council so early in the morning, Kei-chan." 

Anyway, Ishigami decided to praise her hard work ethic. 

"No, no. It's nothing, and aren't you the same, Yuu-senpai? You come to the school so early like me, after all..." 

While Kei was happy, she also couldn't help but praise Ishigami's dedication to working hard for the student council. 

"..." 

Ishigami could only fall in silence since he knew well that the reason he came to the school so early was due to an impure reason. 

Yet, he definitely couldn't say that, and fortunately, they had arrived at the school. 

"Do your best, Kei-chan." 

"Ah, yes, thank you, Yuu-senpai. You, too, do your best. Also, please give me that handkerchief. You don't have to wash it." 

"But..." 

"No, but!" 

"...okay.' 

While Ishigami thought about washing the handkerchief before he returned it to Kei, he knew that it might be a little hard for them to meet each other, considering they studied in different places. 

"Then, see you." 

"Yes, Senpai. Thank you for helping me earlier." 

"It's fine." 

Waving his hand, Ishigami left Kei and walked toward the school before making a detour to the sink to wash his hands. 

Meanwhile, Kei didn't go to her school immediately but stared at Ishigami's back. She knew well that if there was a reason why Shirogane could go on a date with Kaguya, it was all due to Ishigami, and she was more than happy if she could have Kaguya as a sister-in-law, but then again, a strange thought appeared on her mind. 

What if... Shirogane's brother-in-law was...

Ah, she didn't dare to think about it! 

With a reddened face, Kei quickly ran away, afraid to continue her little dirty thoughts! 

Yet, Ishigami knew nothing about Kei's thoughts, and if he knew, he would just laugh since, in his mind, her reaction was like those guys who felt nervous and blushed when they talked with a beautiful woman. It was normal to feel nervous to talk with a handsome guy like him. 

'How narcissistic.' 

Shaking his head, Ishigami washed his hands in the quiet corner until suddenly he heard footsteps from the side. He turned and saw that it was Kobachi. 

"Kobachi." 

After he greeted her, he continued to wash his hands, cleaning all the oils on them, but because of that, he didn't notice a slight change in Kobachi's eyes when she saw him for the first time. 

Like Chika, who was dumbfounded when she saw him on Sunday, Kobachi was the same, so she didn't hesitate and moved closer before she pulled his collars toward her. 

"Eh?" 

Ishigami was startled, but before he could say anything, his lips were taken. 

Her lips parted his lips and devoured his tongue greedily like someone who hadn't tasted water for so many days in the desert. 

While Ishigami was speechless, he had to say, this felt nice even if her movement was a little jerky, but how dare she?! 

However, before he did his revenge, her lips suddenly parted, and she linked her arm against his naturally. 

"Let's go to the library." 

Watching her moist and filled with temptation eyes, Ishigami fell in silence and glanced at her cherry, glistening lips. They had just kissed each other, and his saliva had stained her lips, giving him a strange feeling in his mind. 

Taking a deep breath, he said, "Wait a moment. Let me dry my hands first." 

After drying his hands, the two quickly went to the library to study. 

---

Nothing weird happens. 

I edited it for a bit, for safety reasons.