Musubi

結

The heroine. Minato's first Sekirei. She met Minato when she fell from the sky. She is a power-Strength-type Sekirei. After hearing Tsukiumi claim that she is Minato's wife, she decides that she will be his wife as well. She is very naive and often says things she does not understand. She also eats a lot. At times, a ferocious bear appears behind her, which did not actually appear until after she became Miya's disciple.
Personality
Musubi is very naive, positive, and insightful, often saying things she does not understand, and is probably the most 'childish' of Minato's Sekireis, even more so than Kusano. She is, however, very eager when it comes to confronting other Sekireis (to the point where her eyes gleam and sparkle at the prospect of fighting another) but never fails to be polite, as she usually asks for permission first before fighting them.
Abilities and Powers
Musubi plays a crucial part in Minato's team and is always seen participating in Sekirei battles due to her desire to fight strong opponents. Musubi's abilities are hand-to-hand combat, which utilizes her greatly enhanced strength. This is enforced by the heavy combat gloves she always wears. Her attacks and techniques are mostly punches and kicks, which are supported by her ridiculous strength.
Something else notable about Musubi is that she also has a good amount of stamina and endurance, evidenced during her first fight with Benitsubasa. She took several hits during that fight and was still able to stand up to Benitsubasa's surprise, who thought that she went down after one hit. Even the Disciplinary Squads' Ashikabi acknowledges her strength and came to the conclusion that Benitsubasa would have a hard fight against her without using her Norito.