In crossover anime, who isn't a childhood friend?

At this moment, Toka even wanted to merge with him, not in a euphemistic way, but literally, wanting to hide her entire body inside him. He was so much bigger than her, he should be just the right size to accommodate her...

Overwhelmed by nervousness, Toka is now completely unable to remain calm and has started to have wild thoughts.

"I noticed you were acting strange tonight. You kept tossing and turning and couldn't fall asleep, but even so you didn't take out your phone to scroll through and try to fall asleep. You just stayed awake, which was really weird! So I pretended to be asleep and secretly observed what you were up to. And sure enough!"

Almost two hours! You've had a lot of patience, but unfortunately, I still caught you!

Outside the bed, Rikka wore a smug expression, marveling at her own unparalleled wisdom, with her hands on her hips, chest out, and head held high.

She, who had always been called an idiot, felt that after tonight, she could finally hold her head high and prove her intelligence!

By starting with seemingly insignificant details and pondering the true underlying reasons, and then gradually working backward along that line, it becomes quite easy to uncover the truth!

After the incident at the hotel, she privately pestered Yuan Qianye for more details. Yuan Qianye couldn't stand her annoyance anymore, so he casually gave her a final summary, telling her to figure it out slowly.

Now, Rikka feels that she has completely understood!

Wow, I'm so smart! I used to be so clueless and clueless just because I was too lazy to use my brain.

How about we revise our future plans?

Instead of becoming a shut-in, why not become a freelance detective?

Help others solve problems or cases that are unsolvable, even by the police.

When everyone was at their wits' end, he stepped in naturally and decisively, resolving the issue with style and efficiency. When everything came to a successful close, he received a standing ovation at the press conference, admired by all!

I'll probably be given cool titles like "the savior of the police" or "the beautiful detective of the new century," just like my older brother.

Who knows, maybe my cute ahoge (cowlick) will become a trend!

So, it seems I need to practice my signature; it's a bit messy right now...

"Shh!"

Eriri stepped forward and firmly covered Rikka's mouth, shattering her fantasy.

"Keep your voice down, Qianye is sleeping!"

Rikka paused for a moment, then looked relieved and smiled subtly again.

With an air of supreme wisdom, she turned away from Eriri's hand and said, "I caught you red-handed, and you still want to argue? Before, when Chiya saw that I hadn't showered in the bathroom, he was so angry and acted like an older brother, telling me to shower quickly and finish this as soon as possible. I guess he just wanted me to finish this quickly and go to sleep."

Because I'm in the same room as you, only if I go to sleep first can you find a chance to sneak over and meet with my brother. And for that reason, his actions at that time were essentially creating a favorable opportunity for your current situation!

You actually already discussed this a long time ago!

"So? My deductions are exactly what you discussed in private, aren't you right?"

Ah~——

After saying all this in one breath, Rikka felt her brain trembling and her soul being sublimated in some way.

In the past, she was lazy and content to be a mascot, but no one expected her to be so amazing when she showed her true skills!

She hadn't expected those words before she arrived; she just followed Eriri's words, and her brain naturally came to the conclusion.

Seeing Eriri's shocked yet stunned expression, she truly felt incredibly satisfied!

The thrill of outsmarting others is so intense! Being a smart person must be so enjoyable!

"What...what are you saying?!" Eriri lowered her voice, indicating that she hadn't understood a single word of what she had said!

Because Rikka's voice wasn't lowered like hers, she looked back at the bed with concern, fearing that Chiya might wake up. If that happened, she wouldn't be able to explain it at all!

Although their relationship has progressed further, putting aside Eri Kashiwagi's lewd identity as a doujinshi artist, Eriri, as an elegant young lady, absolutely does not want to be seen by Chiya as the kind of woman who can't suppress her desires and sneaks into a man's room in the middle of the night!

"Ha! You're feeling guilty, aren't you? You were secretly watching my brother's reaction. Even he can't help you in this situation! He's barely able to take care of himself. If you want to have a secret date tonight, just say so. Why did you have to yell at me like that and even hit me on the head?"

As Rikka spoke, she bypassed Eriri and headed straight for the bed.

Yuan Qianye, who had been silently observing the situation, suddenly felt his heart leap into his throat.

Meanwhile, Toka, nestled in his arms, opened her eyes wide in terror.

"Wait!" Eriri grabbed Rikka's arm. "What are you doing?!"

Rikka replied matter-of-factly, "Of course, it's to expose your two lame lies."

Eriri immediately denied it: "I already said we didn't!"

“Yes, I just opened the door a crack and clearly saw you squatting by the bed talking to my brother.”

"He didn't say anything!"

"Didn't say anything? That means it was a kiss!" Rikka was even more excited.

Eriri was about to break down: "So why would you think that! I already told you, Chiya and I only talked about our issues tonight, how could things have progressed so quickly!"

"But most of the sketchbooks you drew were less than ten pages long before you went straight to the final step of being completely honest with each other?" Rikka tilted her head.

"That's not the same thing!" Eriri was panting from her sudden emotional outburst. "Anyway, let's not talk here anymore. Let's go out and not disturb Chiya's rest, okay?"

“Hmm…” Rikka hesitated for a moment, then shook her head: “…No, I still think you’re treating me like an idiot.”

"Aha?"

"First of all, you can't come to my brother's room without a reason."

"I just... I just wanted to come over and say goodnight to him."

"I already said goodnight before."

"...!"

Eriri was extremely anxious, but how could a young girl's feelings be explained so simply in a sentence or two?

Her reaction, in Rikka's eyes, was a sign of guilt, which made her even more certain of her guess: "Furthermore, I know my brother too well. He's as sharp as a wolf. He can hear me whispering bad things about him from several meters away and he can take two steps over and knock me on the head."

It's the same when we're sleeping. Several times I've gotten so angry at him for constantly bullying me that I've planned to call him and play a prank on him, like putting lipstick on him or braiding his hair, turning him into a comedic character. But every time, before I can even do anything, he wakes up and ends up making a mess of my face.

"Seriously! What exactly are you trying to say?!"

"What I'm trying to say is, how could someone as perceptive as Chiya remain completely still in bed when I'm speaking without lowering my voice at all? It's obvious—he's faking sleep and lying to me with you, Eriri!"

Before anyone could react, Rikka switched on the bedside lamp.

The current was switched on, and the warm light instantly lit up, dispelling the gloom.

Yuan Qianye suddenly felt a sharp pain in his lower body!

It was Toka, who was so panicked that she was completely at a loss, who was pinching his thigh hard, signaling him to quickly think of a solution!

She absolutely did not want to, and could not, be caught in bed with her own sister and her sister's friends under these circumstances!!!

Most of her clothes had been removed by him during their recent passionate encounter and were hidden under the covers.

If they were to discover that I was dressed in such a disheveled state, the truth would be revealed instantly, and I would have no room for excuses!

As the eldest sister, she actually developed that kind of relationship with Qianye in private.

"Sister! You actually... he... he...! You two are sisters!"

Toka could already imagine the immediate reaction Rikka would give after she was stunned and speechless upon discovering this.

If Rikka finds out, it means her parents will find out too. How will they view her then?

The eldest sister has developed inappropriate feelings for her adopted second brother, who needs her care. According to the older generation's way of thinking, they would definitely be heartbroken and extremely disappointed in her. The warm family atmosphere would surely be gone.

This might affect the relationship between Mom and Dad, who have finally found happiness again.

When that time came, Shihua felt that she would not be able to continue living in this family, or even in this country.

Only by going abroad, to a place where no one knows you, can you escape the broken relationships of the past and live out the rest of your life.

Driven by the pain, and mainly because she could understand Toka's current anxiety, Gen Chiya stopped pretending to be asleep.

He slowly turned over.

"I knew it!"

Seeing his actions, Rikka, who had guessed "correctly" for the umpteenth time tonight, was even more excited.

Eriri blushed and looked at Chiya, wondering how much of their conversation he had overheard.

"Really..." Yuan Qianye rested his forehead on his hand, facing them, carefully stretching the blanket to ensure the safety of Toka and slowly got up to lean against the headboard.

He rubbed his eyes, pretending to have been completely woken up from his sleep by them: "...What are you doing in the middle of the night?"

"I'm sorry, Chiya..." Eriri apologized immediately.

Rikka chuckled and stood in front of him with her hands on her hips: "I know everything, bro. Eriri already confessed to me before, and now I've caught you two red-handed. No matter how much you try to deny it, it's no use."

“I never intended to deny it.” Yuan Qianye rubbed his eyes. “Yes, I did confess to Eriri, so what?”

"Forehead?"

Wait a minute, where did my brother's expected panicked reaction to my pointing this out go?

"What time do you think it is now?" Yuan Qianye asked expressionlessly, with a hint of annoyance at being woken up from a sweet dream.

Of course, in Rikka's eyes, this reaction was resentment at having her good time interrupted.

But none of that matters anymore; Gen Chiyo's intimidation effect has been achieved, and Rikka's momentum is constantly decreasing.

"You two are secretly dating right now too," Rikka whispered in defense of herself, implying that she herself had no right to criticize him when she hadn't even set a good example.

Gen Chiya looked at Eriri, who shyly lowered her head.

Although the situation was urgent, Yuan Qianye felt that the problem wasn't too big and that he could resolve it smoothly by taking his time.

But now, a sudden discovery has made it impossible for him to maintain that patience any longer!

Oh no! Why didn't I hide that beforehand?!

"Alright, all of you go back to sleep." Yuan Qianye's patience was rapidly waning, and his tone instantly became harsh.

Eriri's initial intention to gently comfort and tease him, who had just made some progress, vanished instantly.

If that gets discovered... then it's all over...

"Um, you still haven't confessed to me what Eriri wanted to do with you so late at night..."

"I already said, it's so late, you should go to sleep. Or do you really want me to take you home tomorrow?"

Gen Chiyo frowned slightly. Due to his long-term practice of swordsmanship, he was still somewhat intimidating when he became serious, at least in Rikka's eyes.

She was the first to be stared at by her usually gentle sworn brother, who even smiled when criticizing her, without any murderous intent. This was the first time he had ever looked at her like that. She immediately shrank back and cowered, a little scared, and couldn't say anything more.