Why is She so Unaffected?

Yuna had a troubled expression on her face as she was standing next to Ryuhan, grabbing his shirt between her index and thumb finger of her right arm.

Ryuhan and Naoto both were glaring at each other, just the difference was the Ryuhan's eyes illustrated his anger and Naoto's didn't. But she also had an indifferent expression that was more intimidating than Ryuhan's.

"Just stop both of you… there is no reason to talk about these things now!" Yuna said with a shaky voice. It seems like she is one of those kinds of people who can't handle people shouting at them.

"Yuna, stay out of this." Naoto pierced her with her cold eyes and said in an authoritative voice.

Ryuhan, with a stern expression, looked down at Yuna for a moment, "Yeah! Stay out of this."

Yuna narrowed her eyes, with prominent irritation on her face, she spouted, "No I won't… you two are acting like kids right now!"