KonoSuba: God's Blessing on This Wonderful World! With my Dragon Sister

After a traffic accident, Kazuma Sato's disappointingly brief life was supposed to be over, but he wakes up to see a beautiful girl before him. She claims to be a goddess, Aqua, and asks if he would like to go to another world and bring only two things with him. Kazuma decides to bring his twin sister Y/n and the goddess herself, and they are transported to a fantasy world filled with adventure, ruled by a demon king. Kazuma only wants to live in peace, but Aqua wants to solve many of this world's problems, while Y/n wants to get stronger to protect her brother, and the demon king will only turn a blind eye for so long...