Although this is just a guess, judging from Kaguya's recent reactions, it seems highly likely.
Getting so excited about his email reply has never happened before.
Of course, even if Kaguya doesn't have romantic feelings for Ren, she still holds a favorable impression of him. Otherwise, there's no way to explain her current reaction.
Although Hayasaka is curious, she doesn't show it at all. She continues instructing Kaguya on how to respond so their conversation can continue as usual.
Hayasaka has become familiar with Ren and has followed and investigated him, naturally knowing his reserved habits. Thus, she knows how to deal with him appropriately.
Shinomiya Kaguya: [So, Kamikawa-kun, are you confident about your body?]
Kamikawa Ren: [Yes]
He is a person with superpower, and physically, no one in this world is better than him.
Shinomiya Kaguya: [Do you exercise?]
Kamikawa Ren: [Yes, I sometimes run in the morning]
As Kaguya gradually gets used to Ren's conversational style, she can have a good conversation with him without Hayasaka's guidance.
And as Hayasaka watches Kaguya's appearance, the more she sees, the more emotional she becomes.
She never expected Kaguya to become such a small girl.
······
Weekend, daytime.
"You finally made it. I've been waiting for you here, and the drinks are almost melting."
Seeing Ren, wearing glasses and slowly walking towards her while holding two Frappuccino glasses in her hands, Ichika deliberately shows an unsatisfied expression and complains.
Today is the day she goes to the office to sign a contract, so Ren who promised to accompany her, was called by her.
"I'm sorry."
Ren just approached, immediately apologizing upon hearing her words.
He arrived here on time, so he wasn't late, and thus, he didn't need to apologize. But after Ichika said it, he had no choice but to apologize.
"Good."
Seeing this, Ichika suddenly feels very interested, returning to her usual smile and handing him the Frappuccino in her hands.
"This?"
Unconsciously, Ren asks.
"Frappuccino, my favorite drink. I bought you an extra cup as a gift for accompanying me to the office." Ichika holds the Frappuccino in her hand and explains to him.
"Thank you."
Ren nods and expresses his gratitude to her.
"But because you came a little late, the Frappuccino has already melted a lot. If that affects the taste or makes you feel uncomfortable, don't say it's my fault."
Taking out her phone and checking the time, Ichika explains first and discards her blame.
What she initially thought was when a man and a woman agreed on a meeting time, the man would usually come earlier.
Therefore, she bought the Frappuccino first and planned to give it to Ren.
To her surprise, Ren didn't intend to come earlier. On the contrary, she was the one who arrived earlier.
This resulted in her having to wait for Ren to come in the daytime, and the Frappuccino she bought earlier would definitely melt.
It was precisely because of this that Ichika took advantage of this to complain to him now.
Judging from his reaction just now, the effect was very good.
Especially when she saw him apologize, she felt an indescribable sense of achievement.
Moreover, Ren usually appeared in front of her as a tutor. Se felt superior. But now, he bowed to her.
That really made her feel happy.
"Okay."
Ren, of course, doesn't mind this. After inserting the straw, he starts drinking.
"Let's go to the office together."
Seeing that he shows no dissatisfaction, Ichika is very satisfied and, of course, pulls him to the office.
"By the way, Kamikawa-san, it seems you don't know that I'm going to that company, right?"
After walking for a while, Ichika suddenly remembers something and talks to him about this topic, breaking the silence between them.
"Yes."
Ichika has never told him about this, so of course, Ren doesn't know.
However, Ren is not curious about such matters; things like offices have no relation to him, so he doesn't need to care.
"Do you want to guess which office I'm going to?" Ichika becomes interested and asks with a smile.
Ren answers honestly: "I don't understand office matters."
"Really, initially, I wanted to show off to you." Ichika complains a little, then takes out a business card from her bag and hands it to him, "See for yourself; this firm is extraordinary."
"Shinomiya Entertainment Agency?"
Taking the business card, Ren ignores the scout name and contact information and looks directly at the agency.
"Exactly, now you know how powerful it is. This belongs to the Shinomiya Consortium." Ichika smiles proudly.
"I don't know." Ren shakes his head.
Honestly, he has never felt anything powerful about the Shinomiya Consortium.
Seeing Ren not looking like he's lying, Ichika has no choice but to ask: "Do you know about Shinomiya Kaguya? She is a famous figure in our school."
Ichika can't believe that she can't explain it to Ren.
"I know, she's my friend." Ren says clearly.
"Wait, what did you say?" Just as Ichika was about to take the opportunity to say something, she suddenly realized something was wrong.
"Nothing was said."
Ren looks at Ichika with confusion, not understanding why she is so surprised.
"You just said that you and Shinomiya-san are friends?" Ichika clarifies.
"Yes." Ren doesn't deny it.
"Really? Are you friends with Shinomiya-san?"
Even after hearing his confirmation, Ichika still can't believe it.
She's in the same class as Kaguya; that's why she's so shocked.
It's already difficult for an ordinary person to say two or three sentences to Kaguya, and it's even more impossible to become friends.
But Ren said that he and Kaguya are friends, and that's outrageous.
"It's true."
In this matter, Ren has no intention of explaining too much.
"It's okay."
Even though Ren doesn't provide evidence to prove his friendship with Kaguya, Ichika still chooses to believe him.
If it were someone else, she would surely think the person is lying, but what Ren said is very convincing.
She doesn't know why, but she just feels that Ren is worthy of trust.