Step back a little into the past.
A certain zoo in Tokyo, a women's toilet somewhere.
"Uh~ Refreshing, refreshing~"
Yotsuba touched her stomach, and walked out of the room with a smile.
"Like an uncle..." Miku muttered, handing the bag to Yotsuba, taking off her headphones and straightening her hair.
"I'm going to the bathroom. I'll leave my things with you."
Yotsuba is respectful and serious in attitude.
"Mission will be completed! Miku-sama, please do whatever you want!"
Miku couldn't help but laugh and closed the toilet door.
Yotsuba turned around and stood in front of the sink. Looking at herself in the mirror, she shook the hair tie on her head and grinned stupidly
"It's great that Miku can become so strong~"
Even though she always felt that her relationship with Shinichi had never progressed, if she could do what she did not long ago and never flinch even when facing setbacks, it would only be a matter of time before Shinichi would be taken over by her.
Although she feels sorry for Ichika and Nino saying this, Yotsuba believes that the best partner for Shinichi is Miku.
This alone is enough for Yotsuba to give up her little fantasy and willingly approve of Miku's love affair.
Of course, this doesn't mean she will help Miku fight Ichika Nino.
They don't have to fight and plot against each other. They can use charm to win Shinichi's heart.
Yotsuba can congratulate whoever wins, or cheer on those who lose.
That's what she thought.
Unfortunately, reality doesn't seem to want to show it the way it wants.
"Ichika... You're here again..."
Yotsuba looks disappointed in the mirror, patting her cheeks to stop herself from feeling lethargic.
She thought that after forest school, that weird Ichika had disappeared, and she would compete fairly with Miku for Shinichi.
Is it because of Nino?
Recalling her appearance that morning, she got goosebumps.
Yotsuba suppressed the uncomfortable feeling.
"…It should have been my misunderstanding."
It's just that there's one more competitor, Ichika probably won't care. Even if she cared, it was a little strange that the changes were starting to happen now.
So, is this just an illusion?
She must have been wrong about Ichika's hostile gaze.
But just now, she was targeted like this by Ichika because she was mistaken for having a crush on Shinichi...
The odds are very high, but that's okay!
Yotsuba was relieved.
After all, Ichika will sooner or later understand that she is everyone's partner and will not monopolize Shinichi.
*Ding dong!*
The message sound is heard.
Yotsuba thought someone was texting her, so she took her cell phone out of her bag. As she clicked on the screen, she realized that the phone she was holding was Miku's phone.
Although she had no intention of intruding on Miku's privacy, before putting it back, Yotsuba accidentally saw the wallpaper screen.
"Very beautiful photos..."
Under the rays of the setting sun, hands intertwined.
Was this picture taken from above? Where did Miku find it...
Yotsuba was about to put the phone back into Miku's bag, when the name of the message sender caused her to stop.
"Ichika...?"
The content of the message was – "After using the toilet, can you come to the observation deck to find me alone? There is something I want to tell you."
Very suspicious.
"Ichika wants to talk to Miku alone... Is that something I can't listen to?"
Thinking of her strange reaction today, Yotsuba had a bad feeling in her heart, and it was difficult to convince herelf with illusions.
She looked towards the toilet and shouted loudly.
"Miku, how much longer?"
Miku's voice was a little difficult to hear.
"Wait a little longer."
It seemed she was facing difficulties.
Everyone says pretty girls don't do that, so Miku... Must be fighting an invisible enemy in the toilet!
"Ichika, I don't think you'll say anything outrageous to Miku..."
After hesitating, Yotsuba looked at the headphones. Worry turned into determination.
"If there's anything I can do for Miku, it can only be done now!"
It didn't matter if she was blamed afterwards, the worst thing she could do was kneel and apologize to Ichika and the others.
It's better if she misunderstands. As long as Ichika doesn't come up with any strange ideas, it's fine to ask her to apologize a few times, even if she has to be responsible for the housework for a week.
She wants to pretend to be Miku to hear what Ichika wants to say to Miku!
In the first place, to prevent Ichika from seeing her face, she purposely splashed water on her face, then she could use it as an excuse to wipe her face and block her view.
Even though their faces look similar, and even though they wear wigs, they are still the same. With their familiarity, the five sisters could still tell who was who at a glance, so Ichika couldn't see the front clearly.
Incidentally, the hooded coat Itsuki had given her for tracking could not only hide her hair, but as long as she lowered her head slightly, the shadow beneath the brim could cover most of her face.
Next, the headphones that could be called Miku's true form had to be hung in a conspicuous place so that Ichika could mistake her for Miku based on her impression.
Lastly, there was the sound which was a bit difficult, and Yotsuba could only resolve it by speaking in a low voice.
After getting ready, Yotsuba looks at the veiled woman in the mirror who looks a lot like Miku.
Then she knocked on the toilet door, stood on tiptoe, and put Miku's bag down from above.
"Miku, I'm sorry! I have to leave for a while because I have something to do. Call me after you finish using the bathroom. I will get back to you as soon as possible!"
"Uh... It's okay, don't worry." Miku in the toilet caught the bag and asked strangely, "Why did something happen suddenly? Was Itsuki looking for you?"
"That's…" Yotsuba wasn't good at lying. She didn't know what excuse to use. After thinking about it, she didn't explain at all.
"Anyway, something went wrong. I will apologize to you later! Work hard in the toilet, Miku!"
After saying that, she rushed out of the women's toilet, leaving only Miku's inexplicable screams.
"Why do you have to encourage in the toilet..."
Yotsuba ran towards the observation deck and didn't care about Miku's reaction.
About four minutes later, she saw a very familiar figure beside the observation deck railing from a distance.
Yotsuba touched the headphones around her neck.
"Ichika… I must have misunderstood, right?"
When she approached a certain distance, she slowed down and imitated Miku's usual weak steps. She lowered her head and took out a handkerchief to wipe her cheeks.
Unable to see Ichika's expression, Yotsuba heard the usual gentle voice, which sounded in front of her.
"Miku~ I'm sorry for calling you here suddenly."