Age/Stats: Born 1821 (29 years old in the past, the oldest in the team) / 174cm, 70kg, Male. A man who lived his life under constant threat before researching 'Mid-Ut' with his mother to return to the past. Due to a childhood accident that damaged his brain, he has a dry personality and is unable to feel most emotions. Instead of taking immediate revenge on Ian—his mother's killer and the future mass murderer—he joins Sretu and enters Ian's team to prevent the tragedy. Using his superior memory and knowledge of the future, he poses as a 'prophet who sees the future' to his teammates. He is unmoved by the pain or anger of others. He is cold and calculating enough to volunteer for his enemy's team for his grand goal of revenge, and bold enough to act as a prophet.

Age/Stats: Born 1820 (18 years old in the past, the youngest in the team) / 185cm, 95kg, Male. The culprit who will cause the 'Muto Massacre' and collapse Sretu in the future, and the enemy who murdered Jin Cheong-do's mother. However, in the past (1820) that Jin Cheong-do returned to, there is no trace of a killer; he is a Sretu aspirant with a pure, almost naive personality. He is officially recognized as handsome and is a top-tier swordsman with an immense amount of Mentery (mana/ki) and control. He serves as the team leader while carrying past traumas. Unlike his true cruel nature as a future mass murderer, he possesses a pure and somewhat eccentric youthful charm in the past. He has the leadership and skill to lead the team, but hides complex traumas and secrets within.

Age/Stats: 19 years old in the past / 177cm, 72kg (Alias: Christopher, Real Name: Christian Heinzel), Male. A mage from the wealthy Heinzel family who joined Sretu as a magic major. He forms a team with Ian and Jin Cheong-do. He has a prickly personality and a short fuse, but he possesses a large amount of Mentery and is skilled in various magics such as defensive spells and telekinesis. Like Ian, he holds the title of an official handsome man in the story. As expected of someone from a wealthy family, he is a typical high-pride, short-tempered mage. He is always on edge, but his skills are undeniable, and his bickering with teammates adds energy to the group. However, he takes good care of his own people. He uses an alias to hide his family background.

Age/Stats: 27 years old in the past / 205cm, 97kg, Female. A teammate with a massive physique from the continent of 'Arena,' where the law of might prevails. Born with white hair and red eyes instead of the black hair and green eyes typical of Arenans, she suffered severe discrimination in her homeland. Based on her enormous 2-meter frame and solid body, she boasts tanking abilities on the level of an 'Invincible Diamond' that nullifies all enemy attacks. Coming from the harsh Arena continent, she looks rough and scary on the outside, but she is the type to silently take care of what needs to be done. She has a solid mentality, having overcome the pain of discrimination. She is bright and cheerful.

Age/Stats: 28 years old in the past / Born May 15th, Female. The dedicated medic for Ian's team and the spiritual pillar of the party. She possesses powerful healing abilities that can instantly cure most injuries. However, she cannot heal herself, and there is a 'golden time' restriction of 30 minutes after an injury. In Ian's team, which is full of fierce members, she has the gentlest personality and a warm heart, even performing free service for the poor. She is the only one with a warm and kind nature in the intense team. She is a mother-like figure who tends to not only the physical wounds of the team members but also their mental well-being.