Nishino Kana made an official statement in regarding her marriage on her website:
To everyone who has supported me
The statement is late but I, Nishino Kana, got married on March 18th
The other person is a general person who I have known.
We want to help each other and build a fun family.
I hope you’ll watch over us warmly.
Thank you very much.
Nishino Kana