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.
Press Play
🎬 Now preparing...
Engaged to the Unidentified
Loading IMAX Experience
✨ Preview Complete
Step 1 of 2
VISIT OUR PARTNER FOR 15 SECONDS
We have no ads — this is a way to keep the site alive 🙏
15
Unlocking share options…
Step 2 of 2
Share & Unlock
Share to a WhatsApp group, Telegram group, or Facebook profile.
A real share is all it takes — no one needs to click the link.
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 …
S01E02
A Loli Sister-in-Law Isn't All That Bad
⭐ 5.0
Jan 16, 201424 min
As Mashiro tries to come to grips with Benio's popularity at school, Kobeni continues to try and remember about Hakuya. Later, Mashiro gets spooked at the thought of aliens existin…
S01E03
I Can Feel the RomCom Waves
Jan 23, 201424 min
Whilst Benio finally gets Mashiro to come to the student council room for tea, Kobeni goes with Hakuya to buy some ingredients for scones. Curious as to why Hakuya is so thoughtful…
S01E04
She's Just a Pervert
Jan 30, 201424 min
The morning after learning about Hakuya, Kobeni ends up with a fever due to her weak body. As Benio informs Mashiro and Hakuya about what she told Kobeni, she blames herself for Ko…
S01E05
This Woman Has Given Birth?
Feb 6, 201424 min
Kobeni learns about a member of the Mitsumine family coming over, along with the fact that Mashiro is nine years old. Whilst shopping for supplies for her guest, Kobeni comes acros…
S01E06
I Know! I'll Fill It with a Sister-in-law
Feb 10, 201424 min
Kobeni's mother, Akane, who had always known the Mitsumines weren't human, tells Kobeni that she is no less thankful to them for saving her life. The next morning, Kobeni tries to …
S01E07
That is That, and This is This
Feb 20, 201424 min
Student Council secretary Konoha Suetsugi feels some hostility towards Kobeni and Mashiro because of their closeness to Benio. Newspaper Club member Niko Ōno offers to help get som…
S01E08
Only a Sister can Heal a Scar Left by a Sister
Feb 27, 201424 min
As Kobeni decides to keep Konoha's true identity a secret from Benio, Niko continues to investigate her, despite warnings from Hakuya. Later, Mashiro and Konoha find some time alon…
S01E09
How Humiliating, I'm So Embarrassed!
Mar 6, 201424 min
As Mashiro informs Konoha about Kobeni and Hakuya's engagement, Hakuya chases after Kobeni, assuring her that he is already engaged to her. When Niko overhears this and asks if the…
S01E10
Looking Up the Term ''Lovey-Dovey Phase''
Mar 13, 201424 min
Benio seems to grow colder towards Hakuya, who seems a bit downhearted when Kobeni denies confessing. Meanwhile, Kobeni clears up the misunderstandings surrounding the engagement w…
S01E11
Enjoying the Handkerchief
Mar 20, 201424 min
Hakuya is troubled over what gift he should get for Kobeni to make up for White Day. Meanwhile, Mashiro is almost spotted using her powers by Niko, who becomes determined to invest…
S01E12
Do You Get It? I Get It.
Mar 27, 201424 min
As Kobeni worries about Hakuya and Mashiro, the only clue she has being a text saying they had gone back to the mountains, Mayura encourages her to go to the mountains herself to l…