Need HELP!!

Chii125 September 20, 2015 2:35 am

I've been searching the internet all night looking for a manga I read a long time ago. The MC is a boy and they fight this evil disease that takes over living things. I think at one point they fight a giant spider. Their weapons are like doctor tools: syringes, scalpels, that sort of thing. It turns out that he also has the disease and if he looses control the girl he fights with has to contain him. I just can't think of the name of it and can't seem to find it anywhere. Anyone know?

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