Teruhiko Futaba

Teruhiko Futaba (双葉 照彦), birth name Teruhiko Ogami (大神 照彦), is a minor enemy Stand user who only appeared in The Book: 4th Another Day novel, based on Diamond Is Unbreakable.

Appearance/Personality
Teruhiko is a greedy and manipulative man. He acts as a quiet architect who don't talk much to people, prefering to sit in a corner and draw lines on his blueprints than spend time with a large group of people, but shows an incredible sense of humor and gentle behavior. Acting calm almost all the time, he also expresses the dream of helping children of being proud of their town and its buildings. Actually those are all lies, as Teruhiko only cares for money and is capable of imprisoning someone for months to achieve his goal. He is described as a young man with an attractive appearance.

History
Teruhiko Ogami was a young architect who had many lovers in his life, one of them being Hanae Orikasa. Later, he started a relationship with Akari Hirai. He once visited an antique shop when he was travelling with Akari in Europe, and was pierced by the Arrow, but wasn't aware that his ability was caused by it and instead thought he developed it by sheer luck. From that antique shop, Teruhiko bought a necklace with a black amber and gave it to Akari as a gift.

Even though he claimed his dream of helping children feel proud of their town and its buildings to Akari, he was actually making illegal blueprints behind the company's back, cutting down on the building materials and planning then as cheaply as possible, making a huge profit from it. The materials were the kind that would fall apart with an earthquake.

Teruhiko Ogami started a relationship with co-worker Akari Hirai. She was contacted by Hanae about his secret of selling defective houses and so Akari confronted him about it. He strangled Akari and pushed her from the company's roof, but she survived the fall in the gap between two buildings and was trapped there by his Memory of Jet. Initially trying to poison her with food, Teruhiko was forced to keep Akari alive as she revealed that she has hidden his stolen money. For months Teruhiko kept Akari prisoner in the alley, threatens the woman by telling he would kill her parents should she call for help. Trying but failing to find the money, Teruhiko eventually agreed with Akari to spare her child for the money. When Akari gave birth to Teruhiko's child Takuma Hasumi and died of weakness, Teruhiko took the newborn from the alley along with the money Akari had been hiding with her, but abandoned him at the door of a temple.

He would eventually change his name into Teruhiko Futaba, marry someone and have a daughter, Chiho, whom he adored despite his difficult relationship with his wife. Teruhiko eventually relocated to Morioh.

The Book: 4th Another Day
One evening, Teruhiko invites Chiho's boyfriend to dine together at his home, only for Takuma to reveal all the proofs he has gathered about Teruhiko's crime while the two are alone together. Moreover, Takuma leaves the house and when Teruhiko sees the amber necklace on Chiho, which had belonged to Akari, Teruhiko realizes that Takuma is his biological son and therefore, his children are having an incestuous relationship.

Teruhiko shortly after, stabbed by a kitchen knife before his house is set on fire. It is implied that Chiho herself stabbed him.