Context: Post chapter 13: Of Sacred Blood.
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Lucina: ... (Watching Robin cautiously)
Robin: ... (Furiously scribbling on his notebook. Is surrounded by stacks of books and crates of countless scrolls of maps)
Lucina: ... (continues watching, biting the bottom of her lip nervously)
Robin: (stops writing and places down the pen into the ink well) How long are you going to stand there? Do you have some business with me?
Lucina: Yes, I do. There is something important I need to discuss with you... and only to you.
Robin: (Glances over his shoulder to meet Lucina's eyes) That sounds ominous. Let me guess... this is about your future and your father, am i right?
Lucina: Yes. I want tell you about my tale of the ruined future that is yet to pass and I want you, more than anyone, to understand why we must prevent it.
Robin: ...Go on.
Lucina: Before Chrom's death, everything was in balance. There was peace. Everyone... including me could live happily and do their daily routines undisturbed. There was no need for War. Life could go on as it should be.
That is... until my father died, along came with the resurrection of Grima.
Robin: ...(Silently turns his body to face Lucina.)
Lucina: Grima and his army of Risen had taken everything: From farms, villages, cities to entire continents. There was almost no safe corner of our world. We were constantly on the run, scavenging for food, fighting off countless Risen and... burying the dead.
Robin: ...(Robin closes his eyes, trying to imagine the chaos and despair she suffered)
Lucina: We cling on any bit of hope we could gasp for. We fought the wretched beast with everything that we had! I took on the name of 'Marth' in hopes to bring morale to the small army that I have led. We thought that as long as there is hope in our hearts and that we persevere... we could win our lives back.
I promised my men that we can bring our lived back that it used to be. I promised... to bring them home.
Robin: ...
Lucina: However, after some time had passed, I learned that we cannot defeat the fell dragon. The awakening... the ritual used to seal him could not be performed completely. We only had 2 of the 5 gems we needed. The rest was lost... gone and forgotten.
I had lost countless brave men under my command. Our fight there could only delay the inevitable, not prevent it.
Robin: ...(Robin finally opened his eyes and stared directly at Lucina.)
Lucina: That is why we cannot -must not- lose this war. Do you see that? You, as the tactician of this brave army, must make sure Chrom and the others can prevent this catastrophe.
My father is the key to end this conflict.
Robin: ...and what is your priority?
Lucina: ...Pardon?
Robin: I repeat. What is your priority? What do you want to save? Chrom, or the world?
Lucina: I... I believe I don't understand what are you getting at.
Robin: This is where I stop you and make you ask yourself - what truly is your purpose of coming back to the future? Is true that your intention to prevent your future from happening or is it to escape from it to see your father and mother again?
Lucina: What?! How did you come up with such a ridiculous conclusion?!
Robin: I believe I should set your priority straight. Chrom... was never a factor in your world. With or without him, it would end up the way it is anyways. That is same for this 'timeline' you have stepped into.
Lucina: ...?! (Lucina was shocked. Her mouth was agape in disbelief at the words Robin was saying.)
Robin: Let me clarify your doubts. If I, the tactician, were to spend every ounce of resource and manpower to protect him, there is little chance we would win this war we are about to engage on. This is because this war is about the soldiers and the tactics. Our men will be picked off and crashed easily if we focused solely on protecting him.
We would have a high chance being on the losing side in this War and the future would be back on its tracks, but Chrom will be alive.
Lucina: You-...!
Robin: On the other hand... If I, the tactician, were to focus on saving the world, Chrom will be allowed to die.. because we have you, the one with the knowledge to prevent the catastrophe and wields the very same falchion that he holds. There is also Lissa, the sister to Chrom who could replace in his place the exalt should he ever fall.
The world will be saved, in the cost of the possibility of Chrom to be dead.
Lucina: How... How could you say that? Are you even listening to what you say?
Robin: What of it?
Lucina: ...!
Robin: These are the facts... and when it comes to facts, they are never wrong.
Lucina: I demand you to eat those words! My father and the world can both be saved! I..!
Robin: BOTH CAN'T BE SAVED AT THE SAME TIME, YOU NAIVE GIRL! ONLY ONE OF THEM...! ONLY ONE OF THEN CAN BE SAVED!
Lucina: ...!
Robin: *Ahem* Excuse me. The fact is, Lucina. The true key factor to prevent the future that you mentioned... was Emmeryn: Chrom's sister and Your Aunt. The sole protector of the fire emblem. The woman who was in the middle of the once peace of the world and the chaos you are trying to prevent.
Lucina: What? S-She... She was? The one... I...
Robin: The one... I... failed to save. At that time, Chrom and the fire emblem was the priority... and there was nothing, absolutely nothing I could do prevent her fall. I was forced to stand there to see my plan failing before my eyes.
Lucina: Robin... No, it was my-!
Robin: It was not your fault. The blame is on me. *sighs*
This is the harsh truth of the world, Lucina. You cannot choose the both of them. You may think you are holding to both... but in the reality you are forsaking the both of them. You will lose everything. I... I learned that the hard way.
Lucina: ...
Robin: ...
Robin: At that time, I finally knew who I truly am. I am the one who chooses who gets to live, who gets to die. I may not be the direct cause, but I was the method. You are not the only one... with that kind of burden.
Lucina: Robin... I didn't kno-!
Robin: I am going to give you time to think about it. There is still months before the ships Plegia had promised us are built and ready for deployment. The choice you are about to make is not easy, but you have to pick one
Lucina: ...
Robin: Please excuse me. I have a ton of paperwork and drafts of battle plans I need to complete. Would you kindly leave my tent?
Lucina: Of course. I would take my leave. (Quietly leaves the tent, with tears of sorrow and pain in her eyes)
Robin: ...
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Robin and Lucina attained C support.
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