(Contains spoilers for the actual movie.. I guess..)
1: Y/n was made from the same Scientist as 1-9 she was given the ♾️ symbol meant to symbolize the future… but she was made before the war.. 1 was made when the war had only just begun and to say he was scared was an understatement he was Terrified… he often hid behind y/n depending on her for strength and courage.. She inspired him to be a leader to be strong and not have to depend on her or anyone else. To inspire the other that came after.. She's the one who gave him his red cape. It used to be hers. She gave it to him to remind him to be brave.. One day they were caught up in the middle of the raging war in the emptiness when tragedy struck… y/n was crushed but before it happened she gave one her coin that he later wore on his hat asking him to not forget her…
everyone thought she was dead so when she showed up one day with 9 and 7 everyone was certainly surprised… especially 1… Y/n wasn't too pleased that one became a tyrant and overall a very selfish person… so of course their relationship was kinda tense but they didn't have time for that because 9 awakened the machine…(movie continues as normal with the addition of y/n) When 9 was going to sacrifice himself so the others could live but y/n planed on sacrificing herself instead believing that he was the leader the others need but what didn't know was that 1 was also planning on pushing 9 out of the way to finally do something right by him y/n and the others so when y/n tried to push 9 out of the way 1 pushed her out of the way "Y/n no!!"
(Movie continues as usual after 1s death with the addition of a depressed y/n but ended with a twist) after the machine was defeated the souls of the ones who died were released and re entered their bodies thus reviveing themselves. Y/n and 1 had a very emotional reunion after this releasing all of the bottled up feelings and emotions and revealed their feelings for each other and getting together. Afterwards 1 stepped down as leader giving y/n the title but she refused saying 9 should be the leader because he saved everyone but 9 gave a speech about how they didn't need a leader they just needed each other if they had that they could pull through anything.
2: Y/n came from a different Scientist not really knowing much about them once she awakened she set out to try to find others and then she met 5 and he led her back to the sanctuary where she met the others. Y/n had been at the sanctuary for some time when she started to develop feelings for 2 she thought he was the smartest person left she admired him so much but she had anxiety when it came to talking to him often completely freezing up whenever he tried talking to her but truthfully he had feelings for her as well unaware of her feelings towards him convinced that she wouldn't be interested in someone so old considering she was a newer model.. But she wouldn't call it older she would call it more experienced due to her being so nervous around him he thought he made her uncomfortable.. One day they were talking and he conferenced to her she wanted to tell him she felt the same way but couldn't form the words.. When 1 sent him out to scout she found it very suspicious an wanted to go with him but 2 said he wanted her to stay put whare it was safe.
(Movie continues as normal 2 gets captured) When 5 came back with 9 and said 2 got taken by the beast she was devastated but she was determined to find him alive y/n insisted on going with 5 and 9 to save 2 so the 3 of them did (movie continues as normal with the addition of y/n) after 7 showed up and killed the beast y/n helped 2 up "are you alright?" She asked him but of course he was more worried about her. Y/n noticed 9 messing with the device that the beast was trying to put into something that looked to be made for it but she had a bad feeling so she went to stop him. "Wait! We don't know what it is yet!" Y/n said just as 9 put the device in then it started glowing green before shooting out green light 2 pushed her and 9 out of the way just before I killed him "TWO!!" Y/n screamed as 5 held her back as she watched him die..
(Movie continues as usual with the addition of a depressed y/n) Y/n ended up dieing during the part at the bridge trying to protect 6. Y/n didn't see 2 on the other side she didn't see anything at all it was completely empty it was scary.. Then 9 saved the day freeing the trapped souls and y/n and the others who died came back. It was an extremely emotional moment for everyone especially y/n who yelled out her feelings for 2 and how she wanted to say something sooner but was afraid. They finally get together.
¾: Y/n was made from a different Scintest. When y/n awoke she moved from place to place on one or more occasion she came across 7 who tryed to convince her to join the fight against the beast but y/n wasn't one for conflict. One night thare was a terrible dust storm and y/n seaked shelter ultimately comeing across the library seeing 7 thare and the twins 3 and 4 y/n found them adorable but not in a romantic way at least not at first however the twins fell hard for her but not being able to verbalize they way they were feeling (the movie continues as normal with the addition of y/n and the twins trying to protect echoher) y/n doesn't die neither do the twins. In the heat of the moment of everyone who did die comeing back you were so excited that you kissed one of the twins then backing up in embarrassment but the twin kissed her back then the other twin also wanted a kiss so that's how y/n and the twins ended up dateing 7 just smirked at you guys..😏
5: Y/n also comes from a different Scientist. Once she awakened she wandered out to try to find others and then stumbled across 5 and he took her to the sanctuary she didn't really talk much but she got defensive when 1 got mad at 5 for being in the emptiness Which surprised 5 and ever since he has been drawn to her. Like I said she doesn't talk much, she's usually pretty quiet. She always hangs around 5 following him everywhere usually wordlessly. 5 fell hard and fast but was way too nervous to admit it. (movie continues as Normal with the addition of y/n she died protecting 5 he died afterwards tho.. but everything was cool after 9 brought everyone back and instead of using words to express how 5 made her feel she just kissed him.
6: (same concept. Different scientist 5 brought y/n to the sanctuary) Y/n was the opposite of 6. She enjoyed talking to 6 because she could just talk and he would listen. She often hung around with 6 in his drawing area. She developed feelings for 6 pretty quickly but didn't say anything fearing he wouldn't feel the same way but he did. He just wasn't completely sure of his feelings but she did make him nervous in a way that he kinda liked. She didn't seem to be a violent or angry person however whenever 8 bullies 6 she gets very mad and protective almost fighting him a few times but does end up befriending him. (Movie continues with the addition of y/n she dies before 6) y/n confessed her feelings for 6 before she died so once they both came back to life he confessed too and they got together.
7: (same concept. Different scientist) Once y/n awoke she stayed put not venturing out into the emptiness out of fear of what she might find. 7 found you when she decided to explore the place y/n stayed in. She managed to convince her to join the fight against the beast and free the world or what was left of it.. Problem was y/n couldn't fight so 7 offered to teach her. And that entailed her following 7 around everywhere y/n fell hard and fast 7 also had feelings for her but never showed it. (Movie continues as Normal neither of them die but y/n nearly did so she ended up confessing to 7 in the moment so afterwards 7 grabs her and kisses her while the battle against the machine is still going on.
8: (Same scenario. Different scientist 5 brought y/n to the sanctuary) everyone was frightened by 8 and understandably so he was pretty intimidating but y/n never even flinched at 8 witch seemed out of character considering y/n was a lot like 6 in a lot of ways she wasn't even fazed by 8s threatening demeanor set him on edge. She often protected the others from 8 and 1 leaving one to slowly start to see himself as..well a bully.. He never wanted it to be that way. He was just trying to do his job protecting the leader but he realized his ego got to his head. He noticed how he made all the others afraid just by walking into a room… but not Y/n..and he didn't understand why..
One day his thoughts got too much for him and he had a breakdown sobbing feeling like he was losing touch with who he was y/n happened to be passing through when this happened so she comforted 8 the best she could he didn't understand why she helped him after everything.. It didn't make sense, nothing really did any more… His thoughts were all jumbled up and eventually he started to develop feelings for her but he refused to say anything fearing if he did she would hate him..
(Movie continues as normal with the addition of y/n she ends up dying before 8) once 9 brings everyone that died back y/n runs up and hugs 8 tightly tears streaming down her face he starts crying as well but then there's a pause share they look into eachothers eyes slowly getting closer before kissing. So they finally got together.
9: (different scientist still) Y/n awoke around the same time as 9 so when he wandered out to find others y/n did as well and they met when 9 met 2 (movie continues as normal with the addition of y/n) Y/n is a lot like a lot.. Like 9 except she wasn't the dunce that put the talisman in the machine and dooming everyone.. Let's just say.. When he did that she was… well VERY angry.. And tried to beat him up 7 had to hold her back but 9 was just like "No she has every right to be angry I screwed up so bad.." (You think!?) (Movie continues as normal with some uncomfortable tension between 9 and y/n this time 1 died before he tried to sacrifice himself to save 9 so instead it was Y/n who stopped 9 from dieing 9 was Horrified by this but ended up saving the day and reviving y/n and everyone else who died. To be completely honest there was some feelings floating around between them the whole time but even more so now that it's all over but it's just kinda just left alone neither of them addressing it while the feelings grow more. they don't really get together until like a long line after the war with the machine and it happened when 9 was having a breakdown suffering from major PTSD of watching half of everyone he's ever known including y/n die before his eyes because of something stupid he did he was convinced she still hated him and that the others did to.. Y/n happened to walk in on this breakdown and admitted that she never hated him and that truthfully she had feelings for him. So they FINALLY get together.