Isekai Escape

On an ascent to see the sunset from a mountain peak, young Maximillian Highreich awakens to memories of a past life in another world. Instead of using this knowledge to get ahead in this new life, he is unwilling to let go of his previous attachments, and strives to discover a way back.

This is about a boy who is determined to escape the other world, even if he has to destroy it in the process.