This article This page outlines Mirai's relationship with characters in the Senran Kagura series.
Family[]
Hanzō National Academy[]
Yagyū[]
Mirai has somewhat of a special love/hate relationship with Yagyū, ever since they met and became destined rivals. Despite this, Mirai does want to have a closer bonding with Yagyū, but her attempts unfortunately keep getting blocked by Yagyū's obsession over Hibari.
Hibari[]
Ayame[]
Homura's Crimson Squad[]
With what they've been through and the memories that they made, Mirai sees every member as a sisterly figure, especially Haruka.
Homura[]
Mirai wasn't sure if she'd belong in the Elite group of Hebijo when she began her first year, but thanks to Homura's modest nature, telling Mirai that she does in fact belong, she was now content to have friends like her and the other members. Mirai soon treats Homura like a parental figure she can talk her problems to, and Homura doesn't mind it at all.
Yomi[]
Because of Yomi's grateful courtesy and kindness towards her, Mirai treats Yomi like a big sister and at Yomi's request, calls her "Sis" occasionally.
Hikage[]
Haruka[]
Mirai was easily panicked when Haruka wanted to turn her into a doll right from when they first met. She was easily shaken and apologizes, only for Haruka to have Mirai refer to her as 'Mistress Haruka' if she wishes for forgiveness. After their little introduction, they both have a special relationship towards one another, even if Haruka teases Mirai from time to time.
Gessen Girls' Academy[]
Murakumo[]
Because she writes stories, and Murakumo draws pictures, Mirai has a modest bond with Murakumo and can see both of them making a story together. As a matter of fact, they have worked with each other on making a story for Ayame in one of Peach Beach Splash's Paradise Episodes.
Shiki[]
Mirai is considered friends with Shiki, but tends to punish her for making bad scenes (ex. invading peoples' privacy, taking pictures of others and uploading them without permission, etc.).
At the end of Shiki's Shinobi Girls' Heart in Estival Versus, because she wasn't invited to Shiki's gathering, Mirai was joyfully on her way to publish a novel that revealed surprising and embarrassing truths about Shiki. All the while being tailed by Shiki, who was desperate to beg Mirai not to publish it.
Hebijo Clandestine Girls' Academy[]
Murasaki[]
Because Mirai is the author of 'Rapunzel the Shinobi', a novel series that she has been working on, Murasaki is really affectionate towards the series, and is Mirai's biggest and only fan of it. Mirai was happy that Murasaki enjoys it, and considers her to be a close friend, just like her Crimson Squad members.
Ryōbi[]
Mirai and Ryōbi both understand each other for how jealous they are of the others girls' breast sizes, since they're both flat-chested. They have so much envy that they made a motto to show their hatred for the others' huge breasts; "Death to All Big Busts!".