I've Already Become An Admiral And Now The System Shows Up? Novel

[You join Marine School, but are laughed at by your classmates because of your slow training and poor grades.][Become famous in Marine School and get rewarded with upgraded traits!]"Join Marine School?"Kenji, who had just become a Marine admiral, became speechless when he saw the system text flashing in his field of vision."This broken system has been loading for fifty years!"When he completed the system tasks, he found that Haki, physique, swordsmanship...all abilities could get stronger and even trigger evolution.[Observation Haki (Gold) has triggered derivative evolution... New trait generated! Future Vision!][Physique (Gold) has triggered derivative evolution... New trait generated! Superspeed Regeneration!]