Go to Another World with the Beautiful Goddess

A Japanese teenager who likes to shut himself up named Shinomiya Riku, accidentally gets involved in hero summoning with his classmates. At that time he met a beautiful goddess who was the one who had summoned them to ask them for help in defeating the Demon King who was currently wreaking havoc in another world. Riku and his friends are given special powers to help them defeat the Demon King. However, different from the others, Riku instead chose a power that could make him rich in that other world. Not only that, when he wanted to be sent to that other world, he also accidentally dragged the goddess along with him. Now, Riku is forced to be responsible for defeating the Demon King in order to bring the goddess back to her origins armed only with strength that is not specifically devoted to fighting.