Aya Matsuura
On 4 August 2013, Tachibana announced he registered his marriage to Aya Matsuura after almost 12 years of dating. Their wedding ceremony was held in Oahu, Hawaii on 7 October. On 24 December 2014, Tachibana and Matsuura announced via their agencies that they gave birth to a girl. In July 2018, Tachibana announced the birth of his second child.