Okamoto’s uniform number will change from 38 to 25 for the 2018 season. He will become the thirtieth player in Yomiuri Giants history to wear the number.
Source: Sponichi 11/19/2017
Okamoto wanted to become a pastry chef when he was a child.
Source: Nikkan Sports 12/4/2017
Nobuhiko Matsunaka gave Okamoto a bat during his first year after turning pro. Okamoto likes the way the bat feels now and is planning to use a similar model in 2018. The new bat, made by Under Armour, is 900 grams and weighted toward the head. Okamoto used the bat during Miyazaki fall camp in November 2017.
Source: Sponichi 12/17/2017