Oneechan ga Kita

Name: Oneechan ga Kita
Genre: Drama, Comedy, Animation
Released: 2014
Rating: 6.7
Cast: Terakawa Aimi, Juri Nagatsuma, Ibuki Kido, Omi Minami, Marina Inoue

The Tomoya's Father get married again after his first wife (and Tomoya's biologic mother) past away. But with this, Tomoya gets a big sister named Ichika. And she, fall in love with her new little brother.