I watched this anime a weeks ago and it was a surprise for me because I didn't had high expectations about that and that was good, because the impact of the plot twist was bigger than other people experience.

It's an anime that has an amazing character glow up, and a story deepest than it seems that definitely recomend. 

This is an image inspired in a frame where personally the anime started. 

This is the frame, where Simon takes Kamina and Yoko, to the place where Lagann was found by him.