attached to this agreement, the rules of the Developmental player system (日本プロ野球育成選手に関する規約) and the rules of the operation of the Nippon Professional Baseball...

from professional baseball. ja:2006年度新人選手選択会議 (日本プロ野球) "Nippon Professional Baseball (Japanese) 公示 フリーエージェント宣言選手 2020年度". NPB.jp (in Japanese). Retrieved...

29, he announced that he would exercise his free agent rights(ja:フリーエージェント (日本プロ野球)). On December 14, 2021, the Fukuoka SoftBank Hawks announced that...