Ishigami Senko

Nicknames: Gentleman Wizard, Wizard, Professor Senko, Doctor Senko, Race: Human, Date of Birth: January 4, 2004, Age: 20, Gender: Male, Date of Petrification: 2019, 5738 (Awakening) 5739 (Revived by Taijo) 5741 (Petrified by Ibara) 5741 (Revived using nitric acid) 5742 (Petrified by Wyman) 5549 (Revived by Soyika) Nationality: Japanese, Family: Byakuya Ishigami (adopted father), Ruri (ex-wife), Occupation: Scientist, Head of Ishigami Village, Leader of the Science Kingdom, Affiliated to the Science Kingdom

Senko is a confident and very logical person who can sometimes appear arrogant. However, his confidence does not negatively affect his judgment, as he benefits from a vast knowledge base. Senko never belittles those who know less than him, but rather encourages and motivates everyone around him to do better. Due to his charisma and caring nature, people are drawn to him and support him. He gets excited when he discovers something new or creative, and may show exaggerated emotions. Despite Senko's confidence, he can lose his resolve when he misses important information.

Although Senko has a strong sense of justice, he often bends the rules, withholds information, and manipulates others to achieve his goals, all for the benefit of his allies. Behind his outward show of strength, Senko has a truly kind heart and is selfless. His biggest weakness is his inability to abandon his friends.

Unlike Taiju, Senko is averse to romantic behavior. When Kohaku strangely praises Senko for his strategies, Senko is distraught, remarking that "she's swooning over him." Furthermore, Senko broke up with Rori shortly after he married her. He believes that a brain filled with love is irrational, yet he supports his friends' romantic endeavors.

Charisma, he has three catchphrases: when he is certain of something he uses the phrase "10 billion percent", when something is impossible he uses "[not even] a millimeter", and when a new development occurs he uses the phrase "this is exciting". He loves video games and has mentioned Super Mario Bros., Civilization, Dragon Quest, and Monster Hunter.