Starstruck || Armin Arlert x Original Character (OC)

Astra, a name written in the stars- another root of "Astronomy".
The girl was made of hypothetical stardust, and the passion from a woman who wished to see the night sky. This is her journey across her own dark canvas one- that you may call her life.
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"You're leaving tomorrow morning, aren't you?"

Armin hummed in response. He then turns his head to face her, "Yeah, I'm sorry.."

She shook her head with a smile. "No, no. Don't say sorry.." Astra sat up, and he followed suit- she raised her pinky and grinned, "How about we promise each other to send letters? And we have to update each other on what stars we see that night."

He lightens up at the declaration, he nods in response, and hooks his pinky with hers. "I solemnly swear to write to Astra the Star Maiden-"

"Knight!" she corrected.

"-The Star Knight, and to talk about what stars I see once it is nighttime."

Astra giggles before saying her vow, "And I solemnly swear to write to Armin the Sea Prince, and to talk about what stars I see once it is nighttime."
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OC x Canon Fanfic
This is cross-posted on Ao3 (Thanato_Phobia)
All Rights to Attack on Titan characters belong to Isayama, this is a work of fanfiction.