When Orion is mysteriously transmigrated into a primitive world where sex and other goods and services can be bartered for, he is determined to make the most of his second chance at life. But as he delves...

Amamiya Hiroto is unlucky. His life consisted of misfortune after misfortune, culminating in an unlucky death during an incident on a school boat trip, trying to save a girl he barely knew. After death, he met...

After Hiroto Amamiya dies on a school trip, the god of reincarnation, Rodocolte, sends the unfortunate student into a second life. There he obtains death attribute magic, but after more than a decade of torment...