Seohyun tried to open and read the messages and the messages were from Hyoyeon, Sooyoung, Seohyun's Mom,  Sunny, and 1 message from an unknown number.

Hyoyeon, Sooyoung and Sunny said hi while Seohyun's mom asked where she was and what time is she going home. But the unknown number texted, 

I miss you

Seohyun realized that the unknown number who texted her was also the same as the one who called her 3 times.

Seohyun tried to call the unknown number

Seohyun had been trying to call the number several times now but still the person won't still answer

"Come on! Answer it! Answer it!" Seohyun said.

The number you dialed is out of coverage area. Please try again later.

"Aish! What's wrong with that person? He must be bored or something." Seohyun said.

After several attempts of calling the unknown number, Seohyun disregarded it and went straight home to eat dinner.