Conan ran out of the library and went straight to the breeding hut outside the teaching building.

Here, the three little ones plus Haihara Ai are still cleaning the rabbit cage. Mitsuhiko and Genta go in to sweep up the rabbit droppings. Haihara Ai and Ayumi are outside watching the rabbits and not running around.

"Why are you back?"

Seeing Conan running back alone, Haihara Ai was a little surprised.

The black rabbit at her feet almost took the opportunity to slip away, but fortunately Ayumi's quick eyesight and quick hands caught the rabbit.

Conan leaned on his knees and took a few deep breaths, then stood up and walked straight to the rabbit cage.

"Misuhiko, Genta, did you find anything when you were cleaning?"

"thing?"

The two raised their heads and looked at Conan at the door in confusion, "What is it? There is only rabbit droppings here..."

Conan's eyebrows suddenly wrinkled, realizing that such a thing couldn't be on the ground, otherwise it would have been picked up long ago.

So, he raised his head and looked at the ceiling of the breeding hut.

At this time, Haihara Ai nervously walked up to Conan and asked softly into the latter's ear.

"Kudo, have you found it?"

"Um……"

Before Conan could finish his answer, his gaze was fixed on the corner of the ceiling of the breeding hut.

Because the breeding hut once leaked heavily, the school installed an additional ceiling under the original ceiling.

And in the gap between the double-layered ceilings, you can see a raised square box stuffed in there.

"Yantai, come and help me!"

"Ah? Oh..."

Conan summoned the tool man Yuantai directly under the square box, stepped on Yuantai's shoulders, and combined with the length of the broom, pulled the square box down from the gap.

Bang.

The box fell to the ground, making a sound of metal hitting the ground.

"Wow! What is this?"

Mitsuhiko bent down to pick up the box, but Haihara Ai rushed forward and held the box in his arms.

"Xiao Ai?"

Haibara Ai's unusually positive attitude also surprised Ayumi, who had usually accepted a cold personality.

But Hui Yuan Ai didn't care at all and picked up the box in his arms and looked at it carefully.

Conan also climbed off Genta's body at this time, put his hands in his pockets, and explained confidently: "This is the time capsule Miyano Akemi left 13 years ago."

"Eh-!"

The three little ones said in unison, looking at the box in surprise.

On the lid of the box, there is a piece of paper attached saying "This is the time capsule of the 19th graduating class, whoever finds it please give it to the teacher".

Hui Yuan Ai looked at the handwriting on it. Although it was still a little immature, she recognized it as her sister's handwriting at a glance.

Memories of his death flooded into his mind, and Hui Yuan Ai's hands trembled slightly, and his eyes couldn't stop feeling sore.

Seeing this, Conan smiled slightly and took the box into his hands.

He opened the lid and found a stack of thick envelopes inside.

Under the baptism of time, the envelope has turned yellow, and the children's names are written in crooked handwriting on it.

In order to take out Miyano Akemi's time capsule before the adults came back, Conan divided the envelope into four parts and asked the three little ones to help him find it.

"You just need to help find Miyano Akemi's envelope..."

"Miyano Akemi?"

"No problem, I'll cover it!"

The three little ones took their own pile of envelopes and began to rummage through them one by one.

With Conan included, each person only needs to view less than 10 messages.

And Haiyuan Ai stood beside him blankly, his heart pounding.

Her mind was a little confused now, and she was both looking forward to it and nervous at the same time.

What I look forward to is being able to have a conversation across time and space with my sister who has been separated by Yin and Yang.

I am nervous because I don’t know what my sister will say to me when I was a child.

What if my sister has some expectations for me, but my actions over the years have not responded to her expectations?

After all, my sister is such a kind person...

And he is just an executioner who researches murderous poisons.

Thinking of this, Haiyuan Ai couldn't help but lower his head and tightly grasped the hem of his woolen coat with both hands.

At this moment, Conan, who was squatting on the ground, suddenly spoke.

"It's okay..."

"Don't be nervous, trust me, she won't blame you."

Haiyuan Ai looked stunned and looked at Conan who was still checking the envelope.

The latter didn't even look at her, but casually explained her inner tangle.

But even though it was a careless comfort, Haiyuan Ai felt a warm current pouring into her heart.

The nervous little hands gradually loosened the hem of his clothes.

At this moment, Mitsuhiko, one of the three little ones, took the lead in checking the envelope he was assigned.

"I've checked, there's nothing there..."

"Me too, I didn't see the envelope signed 'Miyano Akemi'."

"Me too..."

The three of them looked at each other, then looked at Conan.

Conan also stared at them in surprise.

Because I had already checked the envelopes here, and because I was afraid of missing them, I checked them several times.

It turned out that there was no letter from Miyano Akemi inside.

"Did you really check it? Didn't you miss anything?"

"Or a typo?"

Conan asked quickly.

The three little ones looked a little dissatisfied, "Of course, if you don't believe it, come and take a look."

Conan reached out and took the envelopes from the three people and started counting them again.

But even if he counted it himself, and with Haihara Ai watching next to him, he still didn't find the envelope signed by "Miyano Akemi".

Conan put the envelope aside and checked the box again, but there was nothing missing inside.

All the envelopes from that year are here.

But there is no one like Miyano Akemi.

"how so……"

Conan stared at the box and envelope in shock.

It is clear from the oral descriptions of the trio of graduates that Miyano Akemi must have left her own time capsule and words to her sister Miyano Shiho.

But why...

At this moment, several figures walked out from the door of the teaching building. They were the trio of graduates, Kobayashi, and Rumi Wakasa.

Conan immediately retracted his thoughts, put the envelope into the box, and let Haibara Ai keep it temporarily.

At this time, Haiyuan Ai's expression was already a little dazed, and he mechanically took the box with both hands.

Conan also understood the loss and gap in her heart.

But because of this, he had to rely on reasoning to make a quick decision, and then find Miyano Akemi's time capsule. "If we can't find the time capsule, how about everyone recalling the contents?"

"Well, I have no choice but to do this..."

"But I'm a little embarrassed, after all, I'm telling so many people the messages I made when I was a child."

The trio of graduates walked to the breeding hut talking and laughing.

They came to express their gratitude to the young detective team who helped.

"Children, although I didn't find it, I still want to thank you for your help."
To be continued...