Credit to: Noriyuki Iwadare (岩垂 徳行)
I'm afraid I don't have access to the Langrisser V credits and can't see them on YouTube to find others such as the vocalists.
Langrisser V: The End of Legend Statistics For Ben The Sodaman
There are 1,659 views in 1 video for Langrisser V: The End of Legend. His channel published less than an hour of Langrisser V: The End of Legend content, making up less than 0.04% of the total overall content on Ben The Sodaman's YouTube channel.