Butterfly effect?
Rio's dorm room
'I wonder what she is doing here?'
'W-why is he staring at me like that?'
"W-would you stop staring like that!? you perv!"
"Well, it's your own fault, you have such a cute face, i just can't help but stare~" (Rio)
"I-i... Y-you are teasing me again! aren't you!?"
"Oh! You found out! Indeed, you have grown up, even though you used to be so naive back then, sigh~"
"Stop talking like an old man! And I am not naive!"
"Heh, you are so naive~, you even came inside a boy's room all alone; don't you think something might happen to you?"
A playful smile spread over Rio's face; he purposely made an expression that made him look like a perv to mess with her.
Lia had a sudden urge to beat this bastard into pulp, but she held back her hand while clenching her fists tightly.