Working Overtime So No One Else Gets to Sleep

"Seventeen years ago? Even if you ask me something like that, there's no way I can give you an exact answer..."

Glancing furtively at Ran Mouri, who was angrily talking to Mori Kogoro in the outer room, Ai Haibara answered in a low voice.

"Seventeen years ago, I wasn't even one year old yet. Shouldn't you be asking my sister about something like this?"

"I called you precisely because I asked her first..." Curled up on the bed farther inside as well, Tangze stole a glance at Conan, who was carefully studying a stack of papers, then sighed. "I wanted to ask about the APTX administration list."

"...Ah, that." At Tangze's mention of the list, Ai Haibara's voice visibly sank.

Because of APTX4869's unknown effects, as well as its extremely high mortality rate in clinical trials, the organization had once used it as a poison for silencing people.

This method allowed them to kill targets accurately without leaving traces while also obtaining useful drug-testing data. To them, it was an extremely cost-effective choice.

...And that was also proof of the crimes she and her parents had left behind.

"APTX4869 was theoretically created by you." Tangze picked up his phone and narrowed his eyes at the document Noah had proactively pulled up for him. "But that list has existed for many years already."

"Yes, you're right." Ai Haibara let out a breath and slowly curled farther back, wrapping herself in the blanket. "APTX4869 was indeed a drug I developed... but the research behind it had existed for many years. Neither my parents nor I were anything more than later developers of this research."

"In other words, APTX4869 was merely the code name of the generation of the drug created in your hands."

"That's what I mean. When it was in my