The Hidden Dungeon Only I Can Enter (Manga) Vol. 11

Cursed A-rank adventurer Meledy has made it very clear she's out to claim Noir as her own. But it will be a cold day in hell before Emma lets that happen! With Noir's virtue on the line, a new battle between love rivals commences! Then later, when a vicious serial killer who only targets women is on the loose, Noir and Luna pair up for a sting operation to take them down. Will they manage to nab the culprit or will the body count just keep rising?!