Trying to find comic....

I read it on Bato (RIP) and can't recall the name. Im honestly not sure if it's really OI adjacent or not

A soldier was in a letter program during a war. He ends up putting himself at risk to try to save his men,l and injured, losing limbs. After he gets discharged, he tries to find the author of the letters only to find the building burned down.

He goes to the capital to try to find her.