Aiko Hatayama is one of the main characters in Arifureta: From Commonplace to World's Strongest. She is a high school social studies teacher who, along with her students from Japan, was summoned to the world of Tortus. Initially focused on protecting her students and returning home, Aiko becomes an important figure in the fight against the false god Ehit and eventually marries her former student, Hajime Nagumo.

Personality and Appearance

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Aiko has a petite, childlike figure with short dark-brown hair. Her eye color varies between brown and green depending on the medium. She typically wears a white shirt, grey blazer, white neck scarf, dark-brown skirt, and heeled shoes.

As a teacher, Aiko is responsible, caring, and idealistic. She has a strong moral nature and is initially very rule-abiding. Throughout the series, she learns to balance her ideals with the harsh realities of Tortus, becoming more pragmatic while maintaining her core values. Aiko is charismatic and often misunderstands others' affection for her as mere friendliness.

Powers and Abilities

Despite her initial non-combat role, Aiko develops significant magical abilities and tactical skills throughout her journey in Tortus. Her powers are primarily focused on support and nature-based magic, but she learns to apply them creatively in combat situations.

• Keen Intellect: Aiko possesses high intelligence that is befitting a high school teacher. She can use her skills creatively in battle and has impressed even Hajime with her memory and attention to detail.
• Enhanced Physical Abilities: Initially blessed with above-average physical abilities, Aiko's capabilities significantly increase after becoming a human-apostle hybrid.
• Magical Abilities: Aiko's magic is described as being as strong as Kouki Amanogawa's. She specializes in plant-based magic and fertility magic.
• Spirit Magic: Obtained from the Labyrinth at the Divine Mountain, allowing her to heal mental trauma.
• Fermentation Magic: Aiko can produce flammable gases, which she has used to enhance offensive magic in battle.
• Leadership and Charisma: Aiko's strong moral character and hard-working nature have led to her being worshipped as a deity in Tortus.

Trivia

• Aiko is often called "Ai-chan" or "Ai-chan-sensei" by her students and allies.
• She has many nicknames, including "God's Apostle," "Fertility Goddess," and "Miracle Ai."
• Aiko's mana color is cherry pink.
• She enjoys caring for her students and has a fondness for cats.
• Aiko becomes one of Hajime Nagumo's wives despite initially being his teacher.
• Her Protection Wand artifact is similar to the wand wielded by Lyutillis Haltina from Arifureta Zero.