I May Be a Guild Receptionist, but I’ll Solo Any Boss to Clock Out on Time

ギルドの受付嬢ですが、残業は嫌なのでボスをソロ討伐しようと思います

by Mato Kousaka, Suzu Yuuki

Alina thought "Guild Receptionist" would be an ideal easy job. But things aren't working out, as Alina has to work overtime because her adventurers can't clear the dungeon! Her patience exhausted, Alina will take up her trusty warhammer and set out to defeat the dungeon boss herself! (Source: Dengeki Daioh, translated)