Responses
If you read it on webtoon you’ll notice the numbers decreasing, there were actually 4 people in that group chat her 2 friends, her and the girl that died.
As soon as as she saw the last message she notice the number decreasing( people who have seen the message ) meaning that there was another one within the group chat... Remember that she had the ither girl phone :))

Ok, I'm a bit confused about chapter 9... When the girls were chatting about the girl who died, why did the girl who was holding the phone say huh at the end? Was it because it was Miyoung's phone she was holding? Ty