The Angel of Elhamburg(2010)

Elhanburg no Tenshi

By all appearances, the ties that bind High King Madeth and the knight Lalvan, his childhood friend, are made of the sternest stuff. But in truth, their friendship has always struck a most delicate balance. With the arrival of Lady Prima and the birth of her son, Perseus, not long after, the precarious harmony between Madeth and Lalvan crumbles. And when the young Perseus, harboring questions about his lineage, seeks out Lalvan, will the repercussions be much greater than a friendship lost? A lone angel, its eyes replete with sadness, looks on as the tragedy unfolds...

(Source: Yen Press)