freedom is a foreign concept to you.
for your entire life, at least a thousand years time, you've been told what to do, when to do it, how to do it, you are a sword and you are meant for violence and destruction and you have no choice but to bend to your master's will. (or not bend, as that would make you have an incredibly faulty design and that is something that you do not have.)
one would expect life to be in solitude as a weapon, you were brought into this world in the same year as munechika mikazuki, beautiful and radiant and good. anytime your master wouldn't call on either of you to fight in his name, the two of you spent your time by each other's side. as youths, you were essentially attached at the hip. you loved mikazuki, he was enchanting and sweet and affectionate and you remember laying in the courtyard of your master's estate, hand in mikazuki-dono's, staring up at the clouds rolling by.
you tease him, you are impulsive and you try to entertain him with the wild side of yourself, the same one that makes your ears twitch whenever you hear a sound in the distance. you are proud of yourself because you are created by your master, munechika, and a fox god, but mikazuki? he may not be part fox, but he gets more and more beautiful every time you look at him and how is it fair that something made to hurt, to protect but in the form of violence, is so beautiful?
the two of you grow up together happily. you're in awe everytime mikazuki looks at you, those eyes are piercing and enchanting and you are lucky to have his attention for even a few seconds. being a weapon means answering to your master's call, his bidding, whenever he needs you to take up arms and you know that life can not always be as beautiful as it is with your best friend. he is so proper, so gentle and soothing to be around, and while at first you aren't interested in sitting on the porch in the sun's glow, sipping tea and enjoying the breeze on your face, you realize you like it a lot when you're sitting besides mikazuki.
he's not only your friend. when you see your master and his fiancé together, the way they hold each other's hands, it looks innocent and yet so intimate and you are tentative when you slide your fingers between mikazuki-dono's, you take hold of him and you look away, adverting your gaze momentarily because you are embarrassed. you didn't expect him to smile softly at you and hold you tighter. well, you suppose you sort of expected it, but you couldn't be sure. you could never be sure.
the problem that comes with being a sword is that you're at your master's beck and call, you are pulled into battle whenever need be, you can't run free and fall in love and live happily ever after. bloodshed is so familiar to you and whenever you're taken into battle you come home and crawl into mikazuki's arms and you're vibrating with the thrill and rush of war, but also the fear of being lost and not being able to come home to the one person who means more to you than anyone else in the whole world. mikazuki is someone who is soft, he's not made for war. you don't want him to be taken away from you, you can't watch him be pulled off to fight, you want to be there to protect him, to take care of him. that's what you're best at, you come to find.
nights when he's tired and exhausted from laying out in the sun, or he's fallen sick with a cold, you pamper him and you dote on him like a mother fox, all fussy and puffed up and worried. you worry for him constantly. you love him. you know you do.
he grows jealous when another sword becomes part of the family, iwatooshi is like you. he is wild and he reminds you what it's like to be a whirlwind of energy, tearing apart all that stands in your way, he says he is a monk, but he reminds you of the hunt, he reminds you of what you once were. untamed, vain, someone who reacted solely on instinct and instinct alone. mikazuki has calmed you down and iwatooshi comes bounding in and changes all of that. he doesn't change you, per say, but you can feel that mikazuki is unhappy with the other sword around, and any time you can feel that mood shift you snuggle up to your best friend and lover and you whisper in his ear that you are his and will always be--there is no one else you ever want. you don't know if that is something he believes, but it seems to make him relax for the time being and that's a start. you want to prove to him that you are eternally his.
you've always watched humans, you watch they way they fight and the way they love and you can only imagine that it must be a beautiful thing to choose one person to be with for the rest of your life. seeing your master and his fiancé standing so close, so in love and holding together a red string, signifying their bond forever and into the after life--you know that marriage is something for humans. you don't know how much longer you have with mikazuki, you don't know if you'll be traded away to someone else, given as a gift, you don't know if you'll be destroyed in a battle, you are so uncertain of the future.
and what better way to soothe mikazuki-dono's fears that you don't love him than to marry him? unite him to you for as long as you two are in existence and even after--there's no question. while you are immortal in a sense, time is a fleeting thing. you don't want to take any moment with the love of your life for granted. and so, even though there's no official ceremony, nothing but a red string and made up vows and kisses but it means the world and you vow that nothing will ever make you love mikazuki less, you vow to him that he is your moon and without him there you will wither.
if only you knew how short of a time you'd have with mikazuki then.
time flies when you're together and when he's suddenly being ripped from your grasp, taken away to be gifted to some noble, you fight as hard as you can to keep him close, you beg your master to not let mikazuki go, please don't let him go, he's all you have, he's all you need, he's all you want, he's the only thing in the world you care about and no one listens. no one listens to you and you're pushed aside and left to wallow in your misery and you are practically discarded. left to collect dust, you are only used to fight and you feel yourself growing weaker by the moment. you are nothing without mikazuki and you will never take off that red string that is tied around your neck, you will never ever give up on finding him again, you will never find anyone to replace him.
he is so much more than your moon. he is your light, he is the earth and the sky and the stars and the sea, he is everything to you. and you? you are his sun. and maybe one day, the both of you will finally be free.