In a futuristic society, Japan has implemented a complex system referred to as "The Red Threads of Science" to encourage successful marriages and combat increasingly low birthrates. Based on a compatibility calculation, young people at the age of 16 are assigned marriage partners by the government, with severe repercussions awaiting those who disobey the arrangement. For Yukari Nejima, a teen that considers himself average in every way, this system might be his best shot at living a fulfilling life. However, spurred by his infatuation for his classmate and long-time crush, Misaki Takasaki, Yukari defies the system and confesses his love. After some initial reluctance, Misaki reciprocates his feelings in a moment of passion. Unfortunately, before the two can further their relationship, Yukari receives his marriage notice. He is then thrown into a confusing web of love and lies when his less-than-thrilled assigned partner, Ririna Sanada, becomes fascinated with his illicit romance.

Kana Hanazawa
Misaki Takazaki

Yui Makino
Lilina Sanada

Ryota Osaka
Yukari Nejima

Shinnosuke Tachibana
Yusuke Nisaka
Just Because!66%
The Fragrant Flower Blooms with Dignity86%
True Tears61%
Honey Lemon Soda82%
Bokura ga ita70%
Bibliophile Princess69%
InuYasha85%
Bloom Into You78%
Wandering Son68%
7th Time Loop: The Villainess Enjoys a Carefree Life Married to Her Worst Enemy!78%
Golden Time85%
Dance Dance Danseur73%
Joshiochi! 2-kai kara Onnanoko ga... Futtekita!?73%
From Me to You: Kimi ni Todoke74%
KAKEGURUI TWIN74%
NANA84%
Nina the Starry Bride84%
Miru Tights61%
Tadaima, Okaeri77%
Sengoku BASARA: Samurai Kings62%