"Shh, I'm your 00"

01

???

"I guess you're curious about my identity.. haha"

???

"but"

???

"You'll find out soon why.."

김선우

"Because I might be your killer."

Yuri arrived home

조유리(여고생)

"It was so suspicious earlier, it was so suspicious..."

조유리(여고생)

"It's easy to ask Bae Joo-hyun for things like this."

📞Dooroo~

배주현

📞"Hello? Jo Yuri?"

조유리(여고생)

📞"Yeah, yeah, it's me. I met a suspicious person earlier.."

배주현

📞"Suspicious person? Isn't he just someone passing by?"

조유리(여고생)

📞ㅇ..No!! If he's following me, then that stranger must be after me"

배주현

📞"Um...are you sure?"

배주현

📞"It might not be the case, so wait a little longer."

배주현

📞"I'll tell you about what happened tomorrow"

배주현

📞"Let's talk about Hyunjae"

조유리(여고생)

📞"Yeah...yeah"

배주현

Bae Joo-hyun/Jo Yu-ri's 5-year friend/The only person who is good at giving advice/The only model student ranked in the top 14 in the entire school/Yuri doesn't know it, but Sun-woo and Jae-hyun (Hyun-jae) are killers like this

배주현

"Don't cross the line just because I'm a high school girl. I'm a killer."

이재현

Lee Jae-hyun/Soon to be released/He is a high school boy and the same age as Yuri, Seon-woo, and Joo-hyun/He is a model student who is in the top 10 of the entire school (2)/He is a killer, although Yuri doesn't know it.

이재현

"If you touch my friend, I don't know what you'll do to me."