Seirei Tsukai no Blade Dance - Volume 14, Chapter 4 - Return to the Academy

The ill-fated high school student Liu Yuan obtained the inheritance of the top civilization in the universe and changed his own destiny. He also used many powerful technologies in the inheritance to lead the Chinese nation to rise in the universe.

- Description from novelbuddy

Lucas Tanaka, a 30-year-old Japanese man who gave up his dream of becoming a soccer player, lives a monotonous life in Tokyo. After an act of bravery that results in a fatal wound, a glowing screen appears in front of him. [The skill “System” has been granted.] [“System” unlocked.] [The skill “System” has given to you the skill “Supernatural Resistance”.] [“Supernatural Resistance” unlocked.] [Thanks to the divine effect of “Supernatural Resistance”, from now on death is no longer a problem for you]. When Lucas wakes up, he finds himself on a vast soccer field, back in his youth, in the middle of a match with his childhood friend. With new skills and an unexpected chance to relive his dreams, Lucas is faced with the opportunity to redefine his destiny, but first he must overcome the normal challenges of a young soccer player, such as becoming a starter, winning the regional championship and become a professional soccer player! [The hidden function of the skill “Champion System” has been unlocked.] [The skill of “Replicator Genius” has been granted]. [“Replicator Genius” unlocked]. __________ What you can expect: Action, well-developed relationships, an MC who has attitude, a complex system that evolves, an MC who gets really strong, Slice of Life, manga content. The MC is proactive, he knows how to adapt, but he’s not a genius who knows literally every possible future for all his actions.

After 2000 years has passed, the ruthless demon lord has just been reincarnated! But his aptitude at an academy for nurturing candidates for demon lords is, “Inept”!?