Miho

Miho (美穂, Miho) is Seiya's childhood friend, she works at an orphanage, which is the same one where Seiya and his sister Seika, and the other orphans like Shun, Ikki, Shiryu and Hyoga lived before they were taken away. Apparently she's in love with Seiya to some degree, and in a sense represents the point of view of the normal people who are mere witnesses to the struggle between the Gods.

Character traits
Miho is a caring and nurturing person. She shows great affection for Seiya that goes beyond a frienship, and she is always concerned with his well being. She also seems to have an argumentative streak, being somewhat headstrong. She is very curious, and likes to reminisce about the past. In order to represent the point of view of normal people, she witnessed two conflicts between the saints of Athena against the gods or other enemies.

In the original story, she is one of the few characters that have a substantial relationship with a protagonist, without belonging to an army, similar to Shunrei with Shiryū.

Biography
The day before Seiya is suddenly sent away to train in the Sanctuary, Miho hides in a garbage truck that was going to the Kido's mansion so she can talk to the boy before he leaves. Miho asks Seiya if he's really going to leave and Seiya says yes. Miho gets angry seeing the nonchalant way that Seiya answers, and tells him that he could die. In the other day, Seiya hides in in a car and waits for Miho to say goodbye, but she does not appear and Seiya leaves, while Miho observes him hidden.

When Seiya returns from Greece, he goes to the old Orphanage where he finds that Miho turned into teacher and babysitter. Miho believed that she would never see him again. Seiya asks about the whereabouts of her sister Seika, but Miho starts crying for not being able to help her.

Miho suggests to Seiya that if she participates in the Galactic Tournament it will be easier for him to find her, since the tournament is televised to everyone. Miho asks him to be careful in the tournament and at that moment they are interrupted by Makoto, one of the children from the orphanage.

Makoto recognizes Seiya to his surprise and tells him that it is because Miho always talks about him, then Miho runs after Makoto to silence him. Miho watches Galactic Tournament live in Tv while she prays for Seiya and celebrates his victories.

The next day, Miho along with three of the children from the orphanage, meet up with Seiya to help him make the move. Miho gets Seiya a house at the port. The next day Seiya returned to fight in the Galactic Tournament, this time against Dragon Shiryū, but Miho prefers not to see the fight and pray for Seiya in a church.

When she senses that something is wrong, she returns to the orphanage to watch the fight on television and finds Seiya and Shiryū are fighting without their armor. At the end of the fight Seiya is the winner and Miho celebrates it with tears in her eyes holding a photo of Seiya. But when Miho sees that Seiya collapses, the photo falls from her hands, leaving her very scared.

Miho takes a taxi in the direction of the coliseum to see Seiya, while listening on the radio that Seiya intends to help Shiryu to avoid  death since his heart stopped during the combat. When Miho arrives at the colform she encourages Seiya from the stands to save Shiryu since Seiya barely had the strength to stand.

Miho witnesses how Seiya hits Shiryū on the back at the level of the heart saving his life and then goes to congratulate him on it. The next day Miho goes to visit Seiya at the hospital accompanied by the three orphan children. Seiya falls off the bed while playing with the kids and Miho scolds him.

Miho, Shunrei and the children leave the hospital and when they return, Seiya and Shiryu have disappeared, and Shunrei tells her that they have surely gone to the coliseum, leaving Miho is amazed since Seiya is injured. Miho and Shunrei go to the coliseum where Ikki de Fénix has just stolen the Sagittarius Armor, the prize for the winner of the Galactic Tournament.

Miho tells Seiya that he shouldn't fight without his armor. Facing Miho's worried face, Seiya tells her that he won't die until he has found his sister. Then Seiya and the rest of the knights go after Ikki. Miho's next appearance is spent the days on a visit from Seiya to the orphanage. Seiya arrives when everyone is eating and gives Miho a basket of fruits as a gift. Miho tells him that the children were worried about him, but Makoto tells Seiya that the one who was really worried is Miho.

Silver Saints arc
Miho and Seiya go alone for a walk on the beach, but then Kiki appears, scaring Miho the sudde presence, who jumps on Seiya's arms. Seiya tells her that he is a friend and Kiki tells Seiya the the Kido Foundation is being attacked, so Seiya needs to leave to protect the citizens. Miho's next appearance is on another visit by Seiya to the Orphanage, in which they both go to Luxor beach accompanied by Kiki. Miho tells Seiya that she has the impression that he has changed a lot lately.

Seiya tells her that the latest events have matured him a lot. Miho asks him if he will continue fighting and Seiya tells her that he is with her to rest and that he prefers not to talk about it, Miho apologizes for having mentioned it. When they were both calmer, Kiki sees someone and asks Seiya who she is. Seiya tells him that she is Marin, his teacher. When Seiya approaches Marin, Misty appears and tells Seiya that she has come to kill him. Miho pleads Seiya not to fight, but Seiya tells her to tell Saori Kido and the rest of the saints of the recent events, so Miho leaves to seek help.

Miho's next appearance is at the Kido Foundation hospital when she goes to visit Seiya, to whom she was bringing some roses, but upon reaching the room she realizes that Seiya is not in his bed. From the window Miho sees Seiya running away from the hospital. Miho gets angry to see that Seiya doesn't follow the recommendations he has to recover. Miho goes downstairs and tells Seiya that he has to rest, then Seiya runs off into the surrounding forest despite Miho's screams. Miho chases after Seiya but Seiya won't let himself be caught despite Miho's insistence. When Seiya returns to the hospital and falls asleep, Miho ties his arms to prevent him from leaving again.

Miho appears again when Seiya, Hyoga, Shun, and Saori visit the Orphanage. Miho is at the door of the orphanage taking care of the children who play soccer. At dusk, Hyoga, Shun, and Saori leave but Seiya stays a while longer at the orphanage. Miho and Seiya go alone to the port to gaze at the stars.

Miho in those moments remembers her childhood when Seiya went to Greece to receive knight training. Miho tells Seiya that she saw him leave but that she did not say goodbye to him because he was hurt and had too much pride to do so. Miho tells him that she was very happy to see him back after 6 years.

Miho tells him that he thinks that this time he and the other knights are leaving them forever. Seiya asks him why he thinks they are going to leave again. Miho tells him that she knows it and that it shows since they grew up together. Miho tells her that she knows that she will be in great danger risking her life, but that she hopes that one day he will stop doing so to live with her. Seiya tells her that in order to live happily and in peace he has to fight to get it. They both return to the orphanage and there Seiya promises Miho that he will see her again while she begins to cry. Then children fall from the tree next to them. Miho and Seiya tell them off for spying on them.

Hades
Miho reappears in a cameo at the gates of the Orphanage, while she watches a solar eclipse with the children. Miho explains to the children that this occurs because the moon covers the sun. Miho is surprised about the eclipse having not heard about it on the news and wonders if it could be a bad omen. Miho hopes that Seiya is fine where he is.

Trivia

 * Mihu has a certain resemblance to Kiku Takane, a character from Ring ni Kakero, another manga created by Masami Kurumada.
 * In the anime a slightly more romantic approach is denoted in the scene when Seiya says goodbye to her before going to fight at the Sanctuary and against the Gold Saints of the Kyōkō Arles.
 * Mihu has clearly feelings for Seiya, but if he feels the same, it's not clear. Seiya also has other two importat love interests, Shaina and Saori. The anime focus more in his relationship with the goddess, while the manga seems more focused in Shaina while Mihu just makes cameos, but his love life arc in not concluded.
 * In the official encyclopedia, Miho, along with Shaina, Saori and Marin, appears as a possible love interests of Seiya. Mihu is placed behind Shaina and Saori regarding the probability of having a relationship with him.