Engaged to the Unidentified — Season 1, Episode 1: First Impressions are Everything

Episode synopsis

Kobeni Yonomori, who has just turned sixteen, is shocked to learn she has a fiancée named Hakuya Mitsumine who, along with his little sister Mashiro, come to live with her and her older sister Benio. As Kobeni struggles to remember just who Hakuya is, Mashiro finds herself at the mercy of the siscon tendencies of Benio. Later, both Hakuya and Mashiro transfer into Kobeni's class, with Mashiro disturbed to find Benio has a completely different personality at school.

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.

More episodes from Season 1

• E2A Loli Sister-in-Law Isn't All That Bad
• E3I Can Feel the RomCom Waves
• E4She's Just a Pervert
• E5This Woman Has Given Birth?
• E6I Know! I'll Fill It with a Sister-in-law
• E7That is That, and This is This
• E8Only a Sister can Heal a Scar Left by a Sister
• E9How Humiliating, I'm So Embarrassed!
• E10Looking Up the Term ''Lovey-Dovey Phase''
• E11Enjoying the Handkerchief
• E12Do You Get It? I Get It.