Engaged to the Unidentified
Oshimeter
Synopsis
On her 16th birthday, Kobeni Yonomori discovers she's been engaged to a guy she doesn't remember, thanks to a deal her dead grandfather made. That's already a lot to process, but then her fiancé Hakuya and his little sister Mashiro actually move into her house. Hakuya is quiet and stoic, not exactly the worst person to be surprise-engaged to, but not the most communicative either. Mashiro is a tiny, energetic kid who insists she's in high school despite looking about nine. And Kobeni's older sister Benio has a deeply concerning obsession with anything she considers cute, which Mashiro unfortunately qualifies as. The comedy mostly comes from this household dynamic, and it works. Doga Kobo's animation is clean and expressive, giving the 4-koma source material a lot of room to breathe. But what makes this more than just another arranged marriage romcom is the supernatural angle: there's something off about the Mitsumine siblings, and the show takes its time letting you piece that together. It's only 12 episodes, so it never overstays its welcome. The vibe is warm and low-stakes, closer to Kobayashi's Dragon Maid in its found-family energy than something like Nisekoi's romantic runaround. If you liked To LOVE-Ru's harem chaos but want something gentler and more grounded, this is a nice change of pace. It's cozy without being boring, funny without trying too hard.
Episode Guide
Characters
Mashiro Mitsumine
Nine-year-old magical animal spirit, Hakuya's sister, attends high school with Kobeni, easily swayed by sweets.
Yoshida Yuuri
Kobeni Yonomori
Responsible 16-year-old homemaker, saved by Hakuya from a childhood cliff fall, leaving her with amnesia.
Hakuya Mitsumine
Hakuya Mitsumine, a dog spirit, is Kobeni's fiancé who saved her life and now lives with her family.
Hatano Wataru
Benio Yonomori
Benio Yonomori: A dual-natured student council president; playful at home, elegant at school, secretly smitten with Mashiro.
Matsui Eriko
MANGA BRIDGE
This season covers Chapters 1-36 of the manga. Continue reading from Chapter 37.

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The perfect end to a season. The finale wraps up many of the questions raised during the shows running and has plenty of content to continue on if they miraculously decide for a season 2. Also, the animation went to hard!
The pre-finale is here! The ending of this episode makes me super excited to see what happens next! We also got to see what happened to Hakuya during the accident that connects him to Kobeni!
There is more clarity within Kobeni and Hyakuya which is nice but Benio was on their case! Also, some White day romantic scenes!
Kobeni has become more aware of herself! This is exciting! Once again, Niko is pushing boundaries which is not the vibe but it is moving the plot along.
The stakes have been raised as a new challenger approaches! Though most of the episode is shenanigans!
This ep is the sweetest finale and the vibes are just immaculate. We finally get the closure and character depth needed to see how Kobeni really feels about Hakuya, and that mountain scene was everything.
This ep is a total emotional pivot and the tension is actually peaking. We finally get the backstory and character depth needed to understand Hakuya’s true nature and his history with Kobeni.
This ep is a total masterclass in awkward tension and I am living for it. We finally get the lore and character depth needed to understand Hakuya’s family secrets, which makes the stakes feel so much higher.
This ep is a total aesthetic shift and the school trip vibes are immaculate. We finally get the lore and character depth needed to understand the mystery behind Hakuya and Mashiro’s family.
This ep is a total hidden gem and the mystery is finally clicking. We finally get the lore and character depth needed to understand the Mitsumine family secrets, and the supernatural reveal is actually insane.
This ep is a total mystery-drop and the Mitsumine family lore is finally clicking. We get the supernatural character depth needed to see Hakuya as more than just a quiet guy, and that childhood connection is huge.
This ep is a total game-changer and the supernatural reveal is everything. We finally get the lore and character depth needed to understand Hakuya’s true nature and the Mitsumine family secret.
The world of the unidentified has expanded to more characters! I liked the new reveal but Niko was irritating for the most part. Suetsugi asked multiple times for her to stop and she doesn't!
This ep is a total vibe and the hidden lore is finally starting to peak through. We finally get the character depth needed to see Hakuya as more than just a quiet guy, and his interactions with Kobeni are pure gold.
This ep is a total masterclass in awkward charm and I’m lowkey obsessed. We finally get the lore and character depth needed to understand Hakuya’s protective vibes, and that cliffhanger reveal was everything.
This ep is such a weirdly sweet vibe and I’m honestly obsessed with the awkward energy. We finally get the lore and character depth needed to understand Hakuya’s protective side, and Mashiro is literally carrying the comedy.
This ep is a total awkward-comedy masterclass and the sibling energy is peaking. We finally get the character depth needed to see how Kobeni is actually handling this forced engagement, especially with Benio being her usual chaotic self.
This ep is a total fever dream and the setup is actually hilarious. We finally get the lore and character depth needed to understand Kobeni’s chaotic family dynamic and the sudden fiancé situation.
This ep is such a wholesome finale and I’m honestly so soft for it. We finally get the closure and character depth needed to see how Kobeni really feels about the whole engagement.
This ep is a total shift in stakes and the tension is actually peaking. We finally get the lore and character depth needed to understand Hakuya’s family secrets and why he’s so protective of Kobeni.
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