Code: 04 of the Code Breakers. Toki's power revolves around magnetism, but later on he also exhibits the ability of mercury manipulation. When he loses his power, he takes the form of his younger self. He's the joker of the group, always fond of teasing people and has a propensity to tell outrageous lies (which fool no one but Sakura), but gets serious when it comes to his sister, Nenene's, safety. He's extremely popular with females and has a strong liking for breasts. He follows the Hammurabi code variation of "an eye for an eye, a tooth for a tooth and the hammer of justice for the wicked." It's later revealed that Toki and Nenene aren't blood siblings. When Nenene met Toki for the first time she was introduced as his older sister. The reason of that was because when Toki was born his magnetism was too powerful so they had to lock it up in "Pandoras box." The Prime Minister thought this was a waste and Toki is also "The Joker" of Eden. He is able to defeat a Rare Kind with his power. Nenene is a spare, another "Joker" Nenene was born by using "the apples of Eden" to create a child to hold the power. As a special power user's DNA greatly affects normal ones, Nenenes left eye was replaced with Toki's right eye. And so, Toki was given Nenene's left eye. After that she started to look like Toki and was able to use the power. Nenene was merely a vessel and Toki got his power taken away from him. Toki, however, couldn't know any of this and was told that only the older sister Nenene inherited the magnetism power from their father. Toki was thus undervalued and attempted to run away from him, until Nenene transferred half of her power (and accordingly, half of her life) to Toki to make him equally special. That's why Toki could use the power of magnetism before opening "Pandora's box." Later, she died protecting him from the Code:Name Saechika. (Toki thought the Re:Code Kouji was the one who killed Nenene for a long time, but it's later revealed that it was actually Saechika.) Nenene is still alive though and while she is in her lost state she doesn't know who Toki is. (Her mind is going back to her childhood). To her, Toki is still a little child. Still, Toki vows to protect Nenene with his life. It's later revealed that Toki is not his real name, but rather a name he adopted when he became a Code:Breaker.
An Ex-Code: Breaker, the former Code: 01 who was greatly respected by his comrades and subordinates, namely Oogami and Kanda. He is "lackadaisical and never gives a straight answer" according to Oogami. His power is electricity, which can be used to manipulate people. As Code: 01, Hitomi was greatly frustrated by the "non-existent" nature of the Code:Breakers, how they risked their lives fighting evil and yet died unrecognized. He left Eden, and later returned to kidnap Prime Minister Fujiwara (Toki's and Nenene's father) in a plan to publicly execute him, hoping to gain acknowledgement for the Code:Breaker's sacrifices. His plans were thwarted by the Code:Breakers, and he died in his Code:End—the eventual death guaranteed to all Code: Breakers in return for their powers.
Rea's father. He has obsession about his daughter.
She is Rea's mother. It is revealed later that Rea's father married twice, making Aria Rea's stepmother. Though, she is seems to be a drunkard and uncaring, she does have a good side where she doesn't stop Rea from occassionlly sneaking away from the manson, in fact she does wish that she be freed from her controling father.
Kojima Genta is a student in Teitan Elementary when Shinichi joins his class as Edogawa Conan. Shortly afterwards, he and his classmate Ayumi decide to investigate an apparently haunted mansion, and they persuade Conan to come along. When their friend and classmate Mitsuhiko expresses his skepticism about supernatural hauntings, Genta forcefully 'persuades' him to tag along as well. As it turns out, the haunting is a cover-up for an old homicide case. Soon after, the accidental acquisition of a treasure map leads Ayumi, Genta, Mistuhiko and Conan on a hunt for a cache of stolen Italian gold coins, during which Conan saves them from getting killed by the mafia members who are also after the gold. After the case is resolved, Mitsuhiko joins Genta and Ayumi in forming the nucleus of an amateur detective group, the Detective Boys. Genta is quick to pronounce himself the leader of the group, but his lackadaisical leadership abilities are commonly neglected in the field, and in fact everyone (even Genta) unconsciously views Conan as the group's actual leader. Genta's school shoe locker is used as a mailbox for any of their fellow students to present them with a case to solve. Genta loves food, especially unagi, and can eat more than all the other Detective Boys members combined. When discussions of money come up, Genta tends to think about it in terms of how many unagi bowls he could buy. He also tends to mess up certain Japanese terms with similar-sounding words (especially if the latter are related to food) and sometimes has trouble reading even the most common Kanji, which on occasion causes some ridicule from his classmates and friends. His brash personality, lack of awareness of his surroundings, and tendency to not think before acting often lands the Detective Boys (or at least himself) in sticky situations. Even though he is brash, outspoken and can be intimidating, Genta is actually very kind and dependable. He is a good friend of Ayumi and Mitsuhiko, and has been shown to greatly admire his father, who is considered to be a classic "Child of Edo". (Source: Detectiveconanworld.com)