To upgrade from A-grade to S-grade requires spending one million energy points.
Upon seeing the upgraded East Sea Eagle with S-grade bloodline, now named Storm Eagle, Xiao Feng noticed changes in his appearance. The feathers remained white, but occasional lightning flashed in his eyes. Meanwhile, some of his skills underwent alterations.
Observing such significant improvement in East Sea Eagle, Xiao Feng couldn't help but impulsively think, "Should I upgrade him further?"
However, upgrading from S-grade to SS-grade would require spending five million energy points. Considering the already substantial cost for the previous upgrade, wouldn't this be a bit extravagant?
Nevertheless, contemplating East Sea Eagle's future growth, Xiao Feng gritted his teeth and decided to continue enhancing his bloodline.
