Allen

Allen is described as a youthful 17-year-old male.

Allen is dependable, intelligent, and patient, especially when dealing with Lydia’s whims.

He has a habit of patting the heads of younger girls, a gesture that has earned him the nickname “naturally gifted at charming younger girls” from his professor.

His easygoing nature conceals a deep sense of responsibility and loyalty to his friends and family.

Allen was found and adopted by wolf tribe parents.

His name was given in honor of a hero who was celebrated during the Demon Lord War 200 years ago.

Despite not having noble origins, Allen is regarded almost like a son by the mother of Lydia Leinster.

He serves as the vice president of the royal school’s student council, where Caren, his stepsister, also participates.

Allen can use intermediate magic of all attributes and is known for his unparalleled magic control within the kingdom.

His most unique ability is to connect his magical powers with others, which allows him to use upper-level magic by channeling the magic of his allies.

He is skilled enough to become a direct investigator under Sheryl, although Lydia disapproves of this appointment.

Additionally, Allen has long been interested in researching advanced magic.

Allen is super close to Lydia Leinster, teaching her magic during their school days and graduating as the top two students.

He is often swept up in Lydia’s energy and is her inseparable partner.

Caren, the vice student council president, is Allen's stepsister.

Lydia’s mother treats Allen like her own son.

He was recommended for the role of private tutor to Tina Howard, the Duke’s daughter.

He was appointed as the head of the joint Leeinster and Howard business association (Allen Trading Company).

Allen’s habit of patting younger girls on the head is a running joke in the story’s research group.

Despite his magical talents, he failed the royal court mage test.

Allen is called the “key” by both the Eight Great Spirits—including the Ice Crane and Flame Lin—and the Holy Spirit Church, holding the unique ability to connect magic, break the eternal curse of spirits and heroes, and restore disturbed order.

School Life and Tutoring

Allen gained recognition as a top student at the royal academy, where he and Lydia Leinster graduated as valedictorian and salutatorian, respectively.

He was introduced by a professor to become the private tutor for Tina Howard, the Duke’s daughter, after not passing the royal mage examination.

Partnerships and Responsibilities

Allen supports Lydia as her close friend and is referred to as the “Brain of the Sword Princess.”

His relationship with Lydia is both a constant source of chaos and irreplaceable partnership.

Allen’s powerful magic control skills also led him to become a direct investigator under Sheryl, a role that Lydia disapproves of.

Mystical Connections

Allen’s ability to connect magical power with others attracted the attention of spirits and the Holy Spirit Church.

He is considered the fated “key”—a descendant of those who can bind magic, break ancient bonds, and restore disorder created by legendary beings.

Leadership and Research

In the third volume, Allen is entrusted as the manager of the Leeinster and Howard families’ joint trading company, the Allen Trading Company.

He has been studying grand magic since he was young, always seeking to unravel its secrets.

Allen’s nickname, “Brain of the Sword Princess,” reflects his central role in strategies and adventures.

He is deeply involved with both the human and spirit worlds, striving to fulfill a destiny written in the stars.