Chika and him's relationship?

"Not necessarily, it could also be a warning letter from the Phantom Thieves or something."

Chika looked at the envelope in her hand and answered casually.

"Things like Phantom Thieves don't exist at all." Hayasaka complained, "And even if there was, why would the Phantom Thieves put the notice in your shoe cupboard?"

"Compared to strange notification letters, this letter is definitely more like a love letter. Besides, Fujiwara-san, you are very popular with the boys."

Having the appearance of a sexy girl, Hayasaka really likes to complain, especially when facing Chika.

"That would be boring."

Chika is very interested in other people's love affairs, but she doesn't know about her own love affairs.

Even though she has never fallen in love, it still doesn't change the fact that she is a love detective.

"By the way, it's only been less than two weeks since school started," Hayasaka suddenly said, "Fujiwara-san has already received a love letter."

"Yeah, it's still a long time before summer vacation."

Chika answered while opening the letter.

"You might be thinking too far ahead."

"There's no harm in planning ahead."

Chika opened the letter and took out the letter paper inside.

"Let me see what is written there."

Chika didn't shy away from Hayasaka's thoughts, and opened it directly in front of her and started reading.

Hayasaka wanted to know who dared to write a love letter to Chika, so she turned her head curiously.

[Fujiwara-san, please come to the school rooftop at 4:30 this afternoon. There is something very important to tell you]

There wasn't much written in it, and Hayasaka almost read it in one glance.

At first she thought it was nothing, but the more she looked at it, the stranger it became.

Because looking at the overall handwriting, it was clear that it was written by a girl.

However, the two characters "Fujiwara" look clearly different from other handwriting.

So the question is, why should others write the two words Fujiwara?

This confused her.

"Is this a love letter?" Hayasaka wasn't sure.

"No, this is a challenge letter!"

After reading it carefully, Chika slowly spoke.

"Challenge? How did you know that?"

Hayasaka didn't understand how she could see that this was a statement of challenge.

Although there are many strange things, if she think about it, this is clearly more like a love letter.

"Because it was written by Kamikawa Ren."

Chika pointed to the bottom right corner of the letter and explained.

"Kamikawa-kun?"

Looking in the direction she was pointing, Hayasaka saw the signature "Kamikawa Ren".

However, because it was written in a corner and blocked by Chika's hand, it was impossible to see it from her perspective without looking at it carefully.

"So this..."

Hayasaka nodded, looking thoughtful, then continued to complain: "But why did Kamikawa-kun write you a challenge letter? Nothing to do with it at all?"

"You don't understand, Kamikawa-kun is my lifelong enemy."

Chika pretended to be incomprehensible and said something, then carefully folded the letter paper, put it back in the envelope, and put it away properly.

"???"

Hayasaka looked at her with a confused expression.

She remembered that Chika had just met Ren not long ago?

Why did they become lifelong enemies?

She always felt like something bad happened between Chika and Ren?

Hayasaka couldn't stand it anymore and asked directly: "What happened between you and Kamikawa-kun?"

"It was a competitive relationship, but he is a little better than me now," Chika said.

"A little better than you? Does that mean you are no better than Kamikawa-kun?" Hayasaka understood the key point.

"…"

Chika didn't want to answer this question.

Ren tricked her twice, and succeeded both times. She wanted to cheat him, but ended up getting one for zero, and was ridiculed by him.

How dare she say it?

"No, we have winners and losers."

"Is it true? So what do you compare it to?" Hayasaka was a little curious about this.

"Let's talk about this challenge," Chika firmly chose to change the topic.

What if she tells Hayasaka that she and Ren competed against each other and she curada and lost.

Then where does she put her face?

"It was too sudden to change the topic." Hayasaka naturally would not let go of the opportunity to ask this information easily, and continued to ask, "Since you don't want to answer this, tell me how many times have you competed, and the results compared?

After thinking for a while, Chika said: "I played against him a total of three times."

"So, two to one?"

"No, the actual situation is very complicated," Chika shook her head.

"Oh? What happened?"

Hayasaka also became increasingly interested in this issue.

"Among the three times, he attacked first the first two times, and there were no failures."

"The last time I made the first move, I didn't make it."

"We really suit each other, we are balanced."

After saying that, Chika raised her head and seemed to sigh.

"Hey, what do you mean by joint victory? You haven't even won yet?" Hayasaka revealed this fact without hesitation.

They played against each other three times, Ren failed twice, and Chika failed once.

In other words, Ren beat Chika three times!

She wouldn't fall for Chika's little trick.

"…"

Chika was silent for a moment, not knowing what to say.

She originally thought she could hide it this way, but she didn't expect it to be revealed so quickly.

"However, I will definitely win it back in the future."

"You have been defeated three times, so what you say is not convincing at all." Hayasaka thought for a moment and continued, "And when you say this now, it feels like you are setting up a flag…"

"I just didn't prepare those three times, and that's why he won by chance." Chika defended strongly, "Regarding flags and so on, I'm not afraid of that kind of thing."

Hayasaka didn't answer, just looked at her quietly.

Seeing the way she looked at her, Chika felt that her own strength was in serious doubt.

This made her unbearable.

"Come with me to the roof this afternoon and let you see how I respond to the challenge given to me by Kamikawa-san." Chika plans to prove her strength in front of Hayasaka.

"Sure."

Hayasaka smiled and agreed.

The words she just said were just to stimulate Chika, and her goal was to make her say those words.

Then she could go there and have a look together.

However, Ren writes a letter asking Chika to meet on the rooftop, which instinctively makes she realize that things are not simple.

Now that Chika has agreed, she can go together openly.

Rather than following in secret.

"By the way, what exactly are you two competing with?"

Hayasaka really wanted to know the answer to this question.