Boukoku no Siegfried is a popular manga written by Anonymous. The story is translated to English and covers Action, Adventure, Shounen genres. read-manga.org releases the latest English translated chapters of Boukoku no Siegfried and can be read for free.
DESCRIPTION
From Dan of Population GO:
Based off of The Song of the Nibelungs comes a manga about bravery, honor, and heroism. As the last of his people, Siegfried will stop at nothing until he becomes a legendary knight whose story will last eternity. If his legend lives on forever, then so will the memory of his people...and that is his sole reason for going on.