Io Shinoda (Daughter)
At one point in his life Shinoda worked closely with Mitsuo Katagiri and Shiro Miyasaka, but Shinoda broke away from them when Katagiri and Miyasaka formed the Crisis Control Institute, an organization that sought to destroy Godzilla, while Shinoda sought to study him.
His role in the 1999 kaiju film Godzilla 2000: Millennium began with his setting up equipment to track Godzilla's movement during a raid. He travels with his daughter in their Toyota SUV to track Godzilla and learn about him as they are a part of the Godzilla Prediction Agency. He has allowed a reporter seeking to take pictures of Godzilla to accompany them. Later in the film, Shinoda discovers the secret to Godzilla's speedy healing, Re-generator G1. He takes his finding to his old colleagues at the Crisis Control Agency (CCA) and is met with open arms by Miyasaka. Shinoda later risks his life to aid Yuki Ichinose in discovering the Millennian's intentions are to terraform the earth to suit it's race. He, alongside the rest of the main cast watch as Godzilla and Orga battle.
Shinoda lives alone with a single daughter. It is unclear how Shinoda came to be a father, There is nothing to suggest that she is adopted, but it is never stated what happened to her mother. Shinoda is shown to be rather stoic at home, letting his daughter handle their finances and cook their meals.