"woken up by bloodthirst" scene

[Millanir]

I'm looking for the name of a manga.
If I recall correctly, there's a man sleeping (in a tent i think) and some girls need to wake him up. One of them volunteers and proceeds to wake him up by unleashing a "bloodthirst aura". The man wakes up and pins said girl to the ground with a knife to her throat.

Please help me, I can't recall the name...