Nibelungen: the Crossing of Realms Begins with Otter

The Dragon of Origin, the God of Authority, the Lord of Dragon Creation... As the ruler of the Star of Teyvat and the ruler of hundreds of millions of dragons, Nibelung was unwilling to abandon his lair like this, but its resentment was captured by the Lord of the Deep Origin, attracting the attention of fate... Carrying the power of the abyss and possessing the form of advent, the Nibelungen returned to the continent of Teyvat, but the plundering god that was hated by the dragon refused to give up and killed him with a hateful spiritual light. The pain was deep in the bone marrow, deep in the soul, and will never be forgotten... But when it woke up again, it found itself in a strange world: there was no deep abyss of sin wandering in the universe, and there was no darkness peeking above the elements. In this new world, Nibelungen vows to create another dragon epic! But before that, let's start by crushing Gatanjie, the ruler of darkness…