The eldest son of the lower-class aristocrat Greyrat Family in charge of Buena Village located in the Fittoa Region in Asura Kingdom.
He was a 34-year-old unemployed shut-in who was kicked out of his family in his previous life. After an accidental death he found himself reincarnated, and then determined to live his new life to its fullest. From his childhood, he started his magic training through both self-study and also under Roxy's tutelage.

After the Teleport Incident of the Fittoa Region, he ended up transported to the Demon Continent with Eris, and together with Ruijerd they form an adventurer party "Dead End", with a goal to return to Asura Kingdom.

The daughter of the mayor of the big city Roa in the Fittoa Region. She is a red-haired pretty girl with an incredibly short temper. She has a gift in swordsmanship, but is weak in her studies.

She studied with Rudeus before but then was transported with him to the Demon Continent after the Teleport incident of the Fittoa Region. The two and Ruijerd form an adventurer party called "Dead End", with a goal to return to Asura Kingdom.

"A warrior of the "Superd", a demon race also known as "Dead End". He shares the same features as the other Superd people, including emerald green hair and a red gemstone on his forehead. He is a man of few words and has a stubborn character.

He helps Rudeus and Eris who are transported to the Demon Continent, and the three form the adventurer party "Dead End". He aims to accompany the two and send them back to the Asura Kingdom.

A Water King Class Magician of the demon race "Migurd".The Migurd species is known for their longevity, sleepy-looking eyes, blue hair, and a petite appearance even in adulthood. She was hired by the Greyrat Family to teach Rudeus about magic.

After she learns about the Teleport Incident of the Fittoa Region, she joins Elinalise and Talhand, who were Paul's friends in the past, to search for Rudeus's party.

A dwarf magician who was a member of the adventurer party “Fangs of the Black Wolf”. Due to his slow feet and non-existent agility, he uses magic underneath his bulky armor against the enemy’s attacks.

He joins Roxy and Elinalise in search for Paul and the others, who became missing after the Teleport Incident.

An elf warrior who was a member of the adventurer party “Fangs of the Black Wolf”. She likes handsome men.

She joins Roxy and Talhand in search for Paul and the others, who became missing after the Teleport Incident.

Rudeus' childhood friend with elfish ears who live in Buena Village. Her nickname is Sylphy.

When she was a child, she was always bullied until Rudeus saved her and they became friends. She has an interest in magic and learns from Rudeus.

A beast swordswoman hired by the Boreas Greyrat family to teach Eris sword skills.She is muscular and wears an eye-patch on her right eye.

She was a member of the adventurer party "Fangs of the Black Wolf".

A demon race known for their monkey-like face. He likes gambling, and while he was imprisoned by the beast race due to fraud, he met Rudeus in the same prison.

He was a member of the adventurer party "Fangs of the Black Wolf".