Una niña y un niño de secundaria son parte del consejo estudiantil en una escuela costosa. Están enamorados el uno del otro, pero lo han mantenido en secreto hasta ahora. Con la conciencia y una idea de lo que el otro siente por cada uno, el desafío se convierte en hacer que el lado opuesto profese su amor primero.
Rin (Hirano Sho), Yuu (Sakurai Hinako), Koyomi (Tamashiro Tina) y Keita (Isomura Hayato) son amigos de la escuela secundaria. Todos ellos viven en el mismo edificio de apartamentos. Rin y Yuu se quieren, pero no se dicen cómo se sienten. Para ocultar sus sentimientos por Yuu, Rin a menudo le hace comentarios mordaces. Yuu no sabe que a Rin le gusta y no tiene la suficiente confianza para contarle sus sentimientos. Kazuma (Ito Kentaro) luego aparece frente a ellos.
Kogure Nao is a shy and cute high school student. One day, Onise Taiga asks her "would you like to date with me on the promise that we will get married?" Nao is unable to turn down his proposal because she is scared of him. Taiga has red hair and piercing eyes. His appearance gives off the impression that he is a bad boy, but he is actually considerate to others and good at cooking. After getting to know Taiga, Nao begins to have feelings for him.
Ten years have passed since Tsukushi Makino and Domyoji's F4 graduated from Eitoku Academy - a once prestigious school which is now suffering a decline in funding and student enrollment. Oto attends Eitoku Academy but is secretly just a"commoner" who is struggling financially due to the bankruptcy of her father's company. She is afraid her secret will be disclosed if she becomes the target of "commoner hunting" which Kaguragi's C5 is doing to maintain the school's dignity. Meanwhile, Momonozono Academy where Tenma Hase serves as student council president is quickly catching up to Eitoku Academy as a result of Tenma's achievements. Tenma and Oto are in fact engaged to one another and are to be married, but only on the condition that Oto attends Eitoku Academy until she turns 18.
