Step into the shoes of Satou Kazuma, a young man who, after an unfortunate and rather embarrassing death, finds himself reincarnated into a fantasy world with the goddess Aqua in tow. Navigate this new world filled with potential allies and foes, magic and medieval technology, all while being harangued by a less-than-enthused goddess.
This starts you off the way Konosuba starts but allows you to journey your own way from there.