Fullmetal Alchemist - Vol. 20 Ch. 83 - The Promised Day

[MangaDex]

 

[Xinser]

This part on anime when Shunkan Sentimental is playing on the end really gives me a goosebumps

 

[Raydnt]

Its all coming together.

@Xinser
I think the best part they played Shunkan Sentimental was the episode when Heinkiel and Darius carried Ed out of the mines