Reliable

When Xiehan returned, Lanni had just taken a cup of sobering tea and was no longer feeling as drunk as she was earlier. She looked excited when she saw him. "How did it go?" 

In response, he opened his palm to her. She was excited when she saw the strands of red hair in his hand. 

Actually, there were many ways in which they could have gotten Ruby's DNA sample but since they didn't want the latter or anyone else to know for now, this was the best way. 

Securing the hair in a lock bag, Lanni also took the glass that Ruby was using a while ago. There was no harm in having two samples. 

She then tiptoed and tried to pluck a strand of Xiehan's hair. 

The man chuckled and leaned over to accommodate her height. "So casual? Aren't you going to distract me with a hug before you pluck my hair?" 

Giggling at his excuse of asking for hugs, she kissed his lips. "Is this okay?"