Secret Crush -片想い-

Spring of the second year in highschool.
Our protagonist, Chika, has a twin sister with a totally different appearance and personality as hers.
Chika was the more popular one among girls, as opposed to her sister Karen, who was popular with the boys.
School life spent with upper classmen you're attracted to, classmates you fancy, and under classmen you know from childhood.
Longing for a boyfriend who has eyes set only on her, the one she chooses to declare her love to is…….

[Edited from Google Play description]