SF Shinseiki Lensman, Nayuta Recommendations
Both Nayuta as Lensman the main characters, Nayuta and Kim, respectively, are normal people up they get an object acquire unique powers that make them stand out and give absolute importance.
In both stories the characters leave their land to enter the space and on other planets.
In the ends of both stories there is a sacrifice of characters that enable a victorious outcome. In Nayuta merge two important characters to the protagonist, while Lensman revives an old legend.
The ends are the beginning of something new.