Summary: Set two months after the death of his squad, Levi begins to accept everything, including Petra's. Unfortunately, that is the period of time when Petra's ghost comes to visit. Will Levi be able to see her once again? And will she be able to say her goodbye properly? With a help of a certain person, they might. (Levi/Petra ship [BEST OTP EVER!] and an existence of an OC)

A/N: Well, I'm back, guys, with more Rivetra feels. First, I want to thank all the reviews I received from the previous chapter, I really appreciate all your support (though I wish I got more). In return, I'll try to update the story as frequent as possible while my life struggles as a college student. And I noticed that I sounded rude to other OTP shippers out there. I sincerely apologize for my rudeness, I was planning to make it sound like a joke. I understand everyone has their own opinions, so I hope you'll forgive me. Oh, and for your information, the OC will appear in this chapter.

Disclaimer: Shingeki no Kyojin doesn't belong to me. The story and characters belong to Isayama Hajime-sensei. If they were mine, Rivetra would be the top OTP and lots of characters wouldn't have died.

While Levi is busy doing his task, he doesn't realize there's somebody who stands behind him. The figure has an auburn hair, warm amber eyes and wears a gentle smile while staring at him. Petra moves so that she stands beside him and bends forward to get a better view of his face. For her, he looks the same as he was before the incident with the Female Titan, except for the bags under his eyes that appear to be darker and he seems to be lighter in weight.

She sighs in worry. So she calls for him,

"Heichou."

But her word only echoes like a wind. A wind that is unable to be felt or heard, so it is left unanswered.

He doesn't hear nor see me. That means… she thinks and her lips turn into a straight line although the corners remain upwards, so her smile looks more like a half-hearted smile. Shinigami-san has told me earlier that some people might not be able to see nor hear me, especially those who have accepted my death or have forgotten me.

She doesn't know which one Levi feels. Either way, she accepts his decision and feels quite relieved that he has moved on. She doesn't want him to keep mourning or blaming himself for her and her comrades' death. Although there is a part of her who wishes that Levi would still remember them.

I wonder how everyone else is going.

She begins to float and moves towards the door, but turns around to leave a message to the black haired man, "I'll be back, Heichou." And then she passes through the door. She looks at her hands and makes a sarcastic joke, "I guess it's pretty convenient being a ghost. I can fly and even go through walls and doors."

She enters the next room nearest the dining hall which is the guest room. Inside the room, there lies a dark-haired girl who appears to be sleeping quite restlessly.

Petra remembers this girl who appeared in one of the heaviest rainy nights two years ago. The girl is an Asian descendent, similar to Mikasa, and bears the name Nura. She claimed that she was raised in the streets and wished for a better life condition: stable food, comfortable shelter and fine clothing. Levi at first rejected her wish to stay and that there was no point to join the Survey Corps, where most of the members would die within a month or even earlier, and especially when she had no basic trainings at all (plus she was filthy at that time). But due to her persistence and the squad's pity (Petra believed Levi did it because he understood her situation, since he had the same experience), she was given a chance to prove herself to be useful. A week after she started her first training with her balancing, she proved that she can handle the 3D maneuver quite well. When she tried to use the blades, she showed that she had a fear of sharp objects, shown by the way how her body shook with the sight of it, so her progress was a tad slower compared to the previous training. Within a month, she was able to swing her blades while hanging onto the hooks of her 3D maneuver and gave a solid proof that she is indeed a capable fighter when she managed to slice two wooden Titan necks no less within two minutes.

When it comes to psychological test that Hanji conducted on her, Nura displayed a strong, independent and determined personality, but at times she would soften to those that she is comfortable with, particularly Petra. It is known why she had a fear with sharp objects, during her childhood; she used to be abused by her step-father and half-brother, who would punish her by scratching the skin of her arms and back with a knife, for small matters like dropping a glass, which caused her to escape in the age of seven until she turned fifteen. And now that she was seventeen, Petra feels relieved that her life seems to be better after living with them.

Petra then remembers how brave she was during her very first expedition. Normally, soldiers would tremble frantically and even attempt to escape from the Titans. Instead of doing so, Nura shot the cable from her 3D maneuver, pierced it into the nearest house next to a 5-metre class and swiftly cut its neck as if she's done it for years.

She crouches next to the bed and gently tries to pat her head. Much to her shock, she is able to touch her silky hair and Nura stirs a little in her sleep.

Petra swallows and gives a try. "Nura-chan." Her hardened eyebrows soften after hearing her voice. "Nura-chan. Can you hear me?"

After a couple more of rouses, Nura finally peels her eyelids and blinks a few times before widening them.

"P-Petra-san?!" She squeals and immediately covers her mouth, afraid that she's making quite a ruckus and might wake up everyone else. She's trying to hold back the tears while stuttering, "H-How? I thought you're- Why? What are you doing here?"

Petra puts a finger to her own lips to shush her. "I've come to visit all of you. The Shinigami has allowed me to come back for a while."

"How come I can see you and…" she reaches her arm out and holds Petra's arm. "Touch you?"

"I don't know that much details, but according to the Shinigami, I can still touch non-living objects as well as people that can see and hear me. Unfortunately, that doesn't work for everybody."

Nura sits up on the cot. "What do you mean?"

"Well, I can only communicate with those who still remember me or those who have not accepted my death. So Nura-chan, do you still…?"

She sadly looks at her clutched hands. "Yes, Petra-san. I can't accept your death like some people. I don't want to believe that you're gone and now I have no one to talk to, except Levi-sama. And I'm sorry for not being there to help you and other senpais. If only I stayed with you, probably I could trade my place with yours and-"

Petra tries to comfort her by hugging her, then stroking her head. "It's okay. I've already accepted my death and I'm sorry for causing you so much pain. But I'm sure that one day you will accept reality."

Finally the tears are spilled and they spend five minutes of silence until Nura feels a lot better. "So, Petra-san, why have you come back here? Do you still have things to do?"

Petra lightly and nervously scratches her cheek. "If you put it into words, then yes I do."

Excitedly, Nura holds onto her hands. "What is it? Maybe I can help you?"

"Well… um… I'm quite worried with how you guys are doing, especially my father and…"

"Levi-sama?" Nura continues, grinning widely. She knows how much Petra likes Levi, which is a source of her humor.

When Petra nods while blushing, she tries her best to restrain her squeal.

"But I think I'll just go to my father…"

"Why? Don't you want to talk to Levi-sama? Don't you miss him?" Nura inquires.

Petra looks down with clear disappointment in her face expression. "I do. It's just that Heichou doesn't notice my presence. As I've thought, I'm not that important to him, so that should explain why he can't-"

Quickly, Nura interrupts her, "Don't say like that, Petra-san! Don't you ever think about something like that. Levi-sama really cared for all you, especially you. If you were here earlier, you could've seen how devastated he was. He kept on wishing for your coffee and he even checked your room and accidentally fell asleep there once in a while. So please don't underestimate his feelings for you, Petra-san."

Petra doesn't say another word and then silently and meekly bows.

Nura clasps her hands together and tries to lighten up the mood. "So, what should we do now that you're here? And how long are you going to stay here?"

"A week."

She winces. "That's quite too soon. What do you want to do first?"

Petra, without a word, lightly pushes her so that she lies back against the bed. "For now, I want you to sleep first. It's already 1 in the morning and you'll need some rest for tomorrow."

Childishly, Nura pouts. In return, Petra promises they'd spend more time together tomorrow. She accompanies her until she listens to her light snoring, and slips outside the room to enter the next one, which belongs to Eren.

A/N: Well, wala! There you go, you've met the OC and I hope you're fine with her. This is so unprofessional of me, but she's based on my own personality. See how fangirl-ing makes you so crazy? I'm not joking, because I really am an Asian that has a black hair, and I do call Levi with the suffix 'sama' and Petra with 'san'. Of course, I've added some dramatic past to make it more… you know, dramatic. Anyhow in the next chapter, you'll see how I'd treat Eren if I could. I need reviews to convince me to continue. Reviews make me smile!