 If you liked
Fumetsu no Anata e
|
 ...then you might like
Chi. Chikyuu no Undou ni Tsuite
|
Both have a narrative that spans across generations
Both have impactful deaths that drive the story forwards
Both have a theme of transferring ideas and knowledge. In To Your Eternity, this is in the form of memories and experiences of those he encounters. In Orb: On the Movements of the Earth, its scientific knowledge about heliocentrism being passed down through generations.