A long time ago
"Hee~, senior is so handsome when he looks nervous, and his purple-blue eyes are so charming!"
"Do you like my eyes?"
"I like it so much!"
"How about we make an exchange?"
"Not good!"
"Why is it bad!"
"Because only by looking into my senior's eyes can I feel satisfied and safe!"
"Silly girl, if I give you my eyes, then we will become one and you will feel safer!"
"No, I don't want it anyway, I don't want it!"
A long time later
A pair of shining purple eyes dropped crystal tears in the breeze.