Tsubaki Factory Niinuma Kisora・Ono Mizuho Birthday Event 2019 (つばきファクトリー 新沼希空・小野瑞歩バースデーイベント2019) is a fanclub-exclusive DVD featuring the birthday events of Tsubaki Factory members Niinuma Kisora and Ono Mizuho, which took place in September and October 2019.