How to explain your sister

(1)And I decided to meet someone like my parents
(2)Who is that
(3)I’m going to see YOUNG BIN
(4)No, someone who has the same parents as me
(5)Just call me noona

(1)She gave birth to me as a practice before she gave birth to me
(2)Prototype
(3)Legendary Unit 0
(4)He’s out of control
(5)The one who was born first