Minami Fujii is 27 and works for an advertising agency. Though she puts too much effort into her work, she neglects her love life. A lack of communication and of relations with her boyfriend causes him to leave her. This breakup causes a huge depression in Fujii, one that will make her reconsider her life. To escape from reality, Fujii tries to take refuge in her work. But life is never as easy as we want it to be. When she starts to hang out in the evenings with her colleagues, the young woman will find out that their personalities are marked by the wounds in their life...

Suppli had five volumes published in English by Tokyopop, from November 1, 2007 to October 14, 2008, with volumes 4 and 5 collected in a single volume. The title has also been published in French by Delcourt and in Polish by Hanami.