Guard Your Heart by sainnis
Fic rec! 23.6K sheith bodyguard fic
Summary: Raised by his Galra mother and human father and trained by the Marmoran Academy, Blade bodyguard Keith is assigned to protect Earth's first diplomat, Captain Takashi Shirogane of the Galaxy Garrison, at an intergalactic peace coalition. What begins as a simple mission evolves into shared connection as they spend time together, but when an attempt is made on Shiro's life, Keith's Galra instincts kick in, as do some surprising revelations.
Comments: This is so cute - Keith really does his best to guard and care for Shiro, even pushing though poison to prevent an assassination. This does use the true matea trope and has a smutty end, but I was way more interested in the consequences of humanity trying to kill their own ambassador cuz damn. That's rough.








