[Crown of Sin][Ji Ya] Theme: My Childhood Sweetheart, Whom I've Loved for Ages, Fell for Another Woman at First Sight

Ji: #What do I do now that I've realized my childhood friend, the one I like, has always liked my older sister?# Ya: #What do I do now that my childhood friend, whom I've liked for ages, fell in love at first sight with another woman?# After the war, two people in different places unexpectedly met on the same forum. Theme: