Magical Buffs: The Support Caster is Stronger Than He Realized! (Manga) Vol. 7

Nachtlibelle has plunged to the 99th level of the Labyrinth, the same level that nearly saw the end of Wim Strauss's former group, Drachenflügel. Once again, Nachtlibelle relies on Wim to keep everyone alive, requiring him to push his granting magic to new limits and face the horned monkey boss. But unlocking his ability to this extent may have brought on unintended consequences. Wim suffers terrible headaches and hears a strange voice. Can he see through the haze of his lust for battle clearly enough to figure out where this siren song is coming from before it's too late?