All's Fair in Love Games and War

Tae has been practically inseparable from her best friend Kiyo since college. And while Kiyo may be loose with women, Tae can always count on him for support - like whenever she crashes at his place to drown her sorrows over being dumped yet again. But what lies ahead in the morning after another night spent drinking together till dawn?! They're not quite lovers and not quite friends... but a revelation threatens to change all that. Can they move past mixed messages and misunderstandings to become something more? Or are they stuck as "best friends forever"?

Source: MangaPlaza