 __Height:__ 165cm  
__Weight:__ 47kg  
__Sekirei No:__ 09  
__Three sizes:__ B 94 / W 57 / H 88  

She is Minato's fourth Sekirei and her power is water (derived from her name "umi" which means the sea). She contacted him over a dream saying that she would kill him, but when they finally met she was persuaded into becoming his Sekirei. ( ch.22-23) She says that she is Minato's legal wife. At the beginning, she wanted to be the strongest to demonstrate that Ashikabi were not necessary to win but later she confides to Miya that her only goal is to get stronger to protect and live together with her Ashikabi forever.  Tsukiumi is a Sekirei with a tsundere personality and the most aggressive of Minato's party and has a very short temper; she rarely smiles. She was introduced as the first Sekirei that wanted to become the strongest without the help of an Ashikabi. She even stated that she was willing to kill her future Ashikabi if she would ever react to him/her, due to her hate towards Ashikabis[4]. She changed a lot after getting winged by Minato and easily gets jealous when Minato comes in contact with other women, due to her feelings for her Ashikabi. She proclaimed herself to be Minato's legal wife which caused a rivalry between her and Minato's remaining Sekirei, in general Musubi with who she often competes to gain the right to be called 'Minato's legal wife'. Aside from this, she's gets along well with Minato's other Sekirei.  

(Source: Wikipedia, Sekirei Wikia)

Minato Sahashi is extremely intelligent, yet due to his inability to cope under pressure has failed the college entrance exam twice. As a result he has been branded an idiot and loser by many. One day after talking to his yet again disappointed mother he comes into contact with a girl named Musubi who was under attack. The girl runs but takes him with her and soon finds that Minato, while unknown to him, is an Ashikabi, one of the mysterious set of masters that have the genetic trait that can become partners with some of the 108 cute girls, buxom women, and bishounen called "Sekirei". The reason for the partnership allows the Sekirei to use all their power to win in the competition held by the mysterious MBI corporation.
 
(Source: Anime News Network)

__Agency:__ Aoni Production

[Profile](https://www.aoni.co.jp/search/inoue-marina.html) | [Blog](http://yaplog.jp/marinavi/) | [Twitter](https://twitter.com/Mari_navi) | [Anison](http://anison.info/data/person/17179.html) | [Wiki (en)](https://en.wikipedia.org/wiki/Marina_Inoue) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E4%BA%95%E4%B8%8A%E9%BA%BB%E9%87%8C%E5%A5%88)

A voice actress and singer. She is signed onto Sony Music Japan's Aniplex division as a music artist. Formerly under the agency Sigma Seven, she transferred to Aoni Pro in 2022.

**Non-Anime Roles:**
- Pallas - Arknights (VG)
- Elysia - Honkai Impact 3rd (VG)
- Yanqing - Honkai: Star Rail (VG)
- Helm - Goddess of Victory: Nikke (VG)

Birthplace: Pinneberg, Germany

[Official Website](http://www.christin-marquitan.de/) | [Synchronkartei](https://www.synchronkartei.de/sprecher/423/2) | [Facebook](https://www.facebook.com/profile.php?id=100063791310323)

The battle to find the supreme Sekirei continues. Still some of the fighters and their masters refuse to participate in the battle since losing it means to lose the Sekirei forever, and many of them actually care about their partners, while others just use them as tools. A storm is rising on the horizon, a bigger threat approaches the city and it's about to bring pain and suffering to those who love and care for their Sekireis.
 
(Source: Anime News Network)

Minato Sahashi is a loser who's failed his college placement exams two years running. But just as he's contemplating giving up and moving back in with his mom, a chance encounter changes his life forever! Enter Musubi, a girl who literally falls into Minato's life! Musubi is a Sekirei, a mysterious being caught up in a game in which only one of her kind can be left standing. But in order to be victorious in this contest, she needs to find her fated partner...and guess who fits the bill??
 
Caught up in a battle he barely understands, can Minato survive the "Sekirei Project" and emerge victorious? Either way, with his buxom new cohort by his side, his life will certainly never be the same! 
Together forever. I'll be by your side!
 
(Source: Yen Press)

Episode 0 "Kanwanidai (two subepisodes: Sekirei Shindan &amp; Sekirei Yoka)" of Sekirei ~Pure Engagement~ released on the first DVD and BD volume.

"Kusano's first errand" - A ten minute OVA that came along with the 6th vol. limited edition of Sekirei. Kusano finally tires of nobody admitting her as Sahashi's potential wife, so she insists on joining Musubi and Tsukiumi on their shopping race to show her abilities. An iffy day ensues.

The spin-off of Sekirei. Takes place 365 days before the return of Musubi. The tagline is "One year with his girlfriend gone. One year until she returns."
 
Note: The manga was published as the 19th volume of the Sekirei collection.