Nichiyoubi wa Issho ni

The love letter she stayed up all night to write was rejected. She found out her boyfriend was cheating on her. The teacher she had a crush on just got engaged. What is the fate for Kanako, Kirara, and Junko, three girls who are lost in the game of love? A remake of the of Yukari Ichijo's immortal masterpiece! (Source: Shueisha, translated)