Akira Kiryuu is the younger twin of Zero Kiryuu…her fate has been twisted by the beast that bit her 4 years ago…She's been the sick one with Zero being the healthy one. Akira didn't care at all she just wanted her brother to be with her. But as years pass Akira feels some feelings for her brother, not just normal feelings. Will Zero ever expect her own twin to be her partner? Or he will go on with someone else?