```
After adding him as a friend, she sent Xiao Kai a message.
A Cloud: Do you know what's special about May 13th, Tianhe Year Nine?
But Xiao Kai did not reply at all.
She waited for a while before reluctantly going to have breakfast.
After having breakfast, she left for class.
It wasn't until after her morning class that she finally received a message from Xiao Kai.
Xiao Kai: Why should I tell you?
Mu Lingyun: ...
Alright, if this person is unwilling to speak, then there's no way for her to know what happened that day.
It's not like making a movie where you can watch a replay.
Replay?
Right, the Check-in System!
"System, system, are you there?" Mu Lingyun silently called out in her mind.
[Do you want to check in, Host? You can indeed check in now.] The mechanical female voice asked.
"Check in," Mu Lingyun subconsciously said.
[Check-in successful, congratulations on obtaining the chance to meet an old acquaintance from Another World.]
