I called Tia, to make sure if Tina was the one who harmed YoonA.

"Yeobosaeyo?" Tia said.

"Umm... Was your sister with you just now?" I asked her.

"During lunch time?" She asked.

"Yes..." I said.

"Uh yeah... Why?" She asked.

"When she came home from her work? What was she wearing?" I asked.

"Her white sweater and green sweat pants... She always wears that..." She said.

*That doesn't match what YoonA described the killer...*

"Ummm... Can you come to the Seoul Hospital?" I asked her.

"W-Why? S-Something wrong?" Tia asked.

"We have a problem..." I said.

"I could feel like my sister did this..." Tia said.

"She could always change her clothes before she came home..." I said.

"YoonA unnie, I am so truly sorry... Oh my, I can't believe my sister would do something so stupid..." Tia said, shaking her in disbelief. She looks like she wanted to cry.

"It's ok, Tia. It's not your fault... And, I don't think your sister did this..." YoonA said, giving Tia a smile.

"She could always hire a girl to help her..." Tia said.

"Maybe... We need more details... Ask your sis..." I said.

"She might think I'm suspicious... She hates that..." Tia said.

"She ask her like 'How was work? What did you do?'. Something like that..." I said.

"Hope that works though... She hates it when I'm asking 'personal' questions..." Tia said.

"It's not even personal..." I said while crossing my arms.
 

"You think it was Tia's sister who did this?" Sehun asked.

"She can always hire a girl to hurt YoonA unnie..." I said.

"I talked to YoonA already... The details she told me wasn't helping the situation..." I continued.

"So how are we going to find the idiot?" Sejun chimed in.

"I asked Tia to ask her sister a few questions that might help us... Hope she doesn't find out..." I said.

Third person's P.O.V

"Sis... How was work?" Tia asked Tina. Tia looked nervous.

"Boring, as usual... Why?" Tina asked.

"Oh... What time did you have your break?" Tia asked.

"When I came back home for lunch... Why are you asking these questions?" Tina asked.

"Have you heard anything about YoonA-sshi?" Tia