About Engaged to the Unidentified
Just an ordinary teenager, Kobeni Yonomori receives quite the surprise on her 16th birthday—a fiancé and a sister-in-law she never even knew she had. As a result of an arrangement that her late grandfather made, Hakuya Mitsumine and his younger sister Mashiro have moved from their countryside home to the Yonomori household in order to deepen their relationship with their new family members.
This story follows Kobeni's "love life" with Hakuya as she tries her best to adjust to the abrupt changes forced upon her. However, as some extraordinary secrets regarding the siblings come to light, Kobeni will find her life changed forever.
Full Cast of Engaged to the Unidentified
Aimi
plays Mayura Momouchi (voice) (12 episodes)
Asuka Kakumoto
plays Niko Oono (voice) (12 episodes)
Yui Watanabe
plays Akane Yonomori (voice) (12 episodes)
Yuri Komagata
plays Shirayuki Mitsumine (voice) (12 episodes)
Saki Fujita
plays Konoha Suetsugi (voice) (12 episodes)
Wataru Hatano
plays Hakuya Mitsumine (voice) (12 episodes)
Haruka Terui
plays Kobeni Yonomori (voice) (12 episodes)
Ayane Sakura
plays Nadeshiko Kashima (voice) (12 episodes)
Eriko Matsui
plays Benio Yonomori (voice) (12 episodes)
Yuri Yoshida
plays Mashiro Mitsumine (voice) (12 episodes)
Crew of Engaged to the Unidentified