1.

(Tsundere! Kagamine Rin x Kuudere + Male! Reader)

Rieko "Rin" Kagamine was your enemy because Rin's dad was your sweet mother's enemy. Since you two grown up together. You and Rin knew each other so well.

You were only two years older than Rin and now. You two are in the college! But Rin was in Medical school while you were in Language School.