"Number??!"

The morning breeze kissed the dew on the leaves. In the clean and bright campus of Teitan Elementary School, a girl with brown hair and a boy with black hair and black-framed glasses, no more than seven years old, stood side by side.

Huiyuan Ai widened her eyes in shock, and her usually calm facial expression became more vivid. "He is only fifteen years old at most?"

"Ah... yes." Conan Edogawa, who brought up this matter, also had mixed feelings. He stared at the energetic children on the playground, but his memory went back to last night.

Last night he went to Kudo's house as usual to see the mysterious boy they rescued, and at the same time exchanged information about his movements throughout the day with Subaru Okiya, who was disguised as an ordinary person but was actually an FBI agent.

As expected, he never spoke and made no attempt to communicate with them. Every day he just stood by the window and stared at the sky like a wooden man.

It has been raining recently, so during the occasional times when there was no rain, the sky was gray as if covered with a layer of gray film. The dark blue in the boy's eyes unexpectedly matched the sky.

Conan Edogawa almost wondered whether he was autistic or just dumb.

However, Okiya Subaru is calm and collected. He takes care of people diligently every day without asking for anything in return. He is simply the best male mother.

"It's not like I'm completely clueless," Okiya Subaru smiled and tilted his head to look at the boy standing by the window.

The voice reached Conan's ears clearly, "There is a number on the back of his neck."

"?!" Edogawa Conan's breathing subconsciously stopped, and his eyes turned to the boy, but he was stopped by Okiya Subaru.

Conan looked at the pink-haired man in front of him in confusion.

The man smiled and raised his index finger to his lips, making a "hissing" motion. "He is very sensitive."

"What's the number?" Edogawa Conan nodded obediently and asked in a low voice.

Subaru Okiya opened his cell phone and placed the photo he took last night in front of him.

Conan looked at the photo.

What caught my eye was a white and thin neck, with scarlet codes hidden within the soft black hair, like a beast hidden in the jungle, which would jump out and give you a fatal blow when you are not paying attention.

Even though some hair obscured the number, Conan could still tell it was "001", and the red ink border was smooth skin.