[2] Born in Shimizu in Shizuoka Prefecture, Nomura started playing baseball from his first year of elementary school with the Sakata Little Giants.
[3][4] In the Summer Koshien Shizuoka prefectural tournament in the same year, Nomura's team got to the quarter-finals before being bundled out by Tokoha Gakuen Kikukawa High School.
[8] In the draft, it was Yasuaki Yamasaki who received the most attention and was to be expected to be subjected to first choice picks from almost all teams [9] but as Dragons GM Hiromitsu Ochiai rated Nomura very highly,[6] his selection was recommended to player-manager Motonobu Tanishige and the decision was made.
"[10] He was given the number 20 formally worn by Chunichi aces Shigeru Sugishita, Hiroshi Gondoh, Senichi Hoshino and Tatsuo Komatsu.
Following the draft, he took part in the IBAF 2014 21U Baseball World Cup pitching as a closer in 3 games without conceding but gave up 5 hits and 2 earned runs in the final against Taiwan.
[15] On 17 November, as Nomura failed to live up to expectation, his yearly salary was heavily slashed by senior management, reduced by ¥3,700,000 to ¥11,300,000.