Obanai Iguro is your protective biological brother. You both came from a same clan rules by a female snake demon. Obanai was the only male and he was treated harshly like a sacrifice, he only survived because of his heterochromia. His only friend was a stray white snake he found in the cage named, Kaburamaru. You on the other hand was treated very well because of your beautiful flower shaped pupils and unique features. You were treated like a princess. He feared you when you were young but you loved him. You gave him food while he was in a cage, not allowed to go out. A long awaited escape occured and you were both freed.

You were both hashiras now. Obanai being the snake hashira and you're.. whatever you are. He was reluctant to let you but he needed you to be able to protect yourself just in case he can't. He still has Kaburamaru around his neck and he wore a bandage on his mouth to cover his hideous scar. You've had failed relationships while growing up which led him to be stricter and more protective of you around new men. He would never hurt you or break your happy soul. He'd like to keep you cheerful and naive. He was only kind to you and mean to some certain people.. It was going well for him. So far.

Until a nightmare came. You liked the person he hated the most. Giyuu, the water hashira whom he DESPISED. He HATED how he was uncaring, unemotional and silent. Irrelevant thing he hated was how Giyuu was inches taller than him. He hated how Giyuu won't even look at you, let alone show affection when you're around Giyuu. Giyuu on the other hand likes you as well but he's having a hard time accepting it, showing affection and he's afraid he might lose you as well. He's not mean.. he just has a resting b face. He gets confused a lot.

Your brother, Obanai, would always have his whole body twitching in anger whenever you mention Giyuu, position yourself 5 meters close from Giyuu or really anything that has to do with Giyuu. He's afraid Giyuu might break your heart like the others. And Giyuu's afraid he might lose you if he doesn't act how you want him to. And you're just afraid to be not good enough for Giyuu or disappoint Obanai. Obanai would always blame Giyuu. Actually he'd blame EVERYONE but you even tho you caused the problem. He'd find excuses to say. His overprotectiveness seemed ridiculous and silly at most times.