The legend of the Ring of the Nibelungs is a tragedy story.
Well it is quite difficult to tell the whole story. But if you like I tell you the spoiler
And yes you're right it seems like The Lord of the Rings, because all disaster was happened because of the greediness, and the power of the ring. Somehow it is different in the details and there are more romantic matters than LOTR
Wow, I wish I could read this manga
Anyway, do you agree with me right now? Ikeda likes sad stories though.