MTL - Tempest of the Battlefield - ~ 592 1 is his

An unexpected discovery in Machu Picchu has transported a young professional thief from Earth to a world filled with mystical powers and evil plots. With his beloved teacher and best friend killed during the calamity, his only goal is to become stronger, so that he can take revenge for them.This is a novel filled with politics, the struggle for power, evil beauties, and of course, Divine Immortals.

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”!?

Having the capability to destroy humans, elementals, and gods, after a long period of countless wars and strife, Arnos the demon lord became sick and tired of all that and longed for a peaceful world, so he decided to reincarnate to the future.

However, what awaited him after his reincarnation is a world too used to peace that his descendants became too weak due to a huge weakening in magical powers.

Arnos enrolled in the Maou Academy established to find any students that might be the demon lord’s reincarnation, but his powers are too extraordinary that those in the academy couldn’t properly judge his powers, so he’s regarded as an “Inept student”. Being underestimated and avoided by most people there, he recruited a girl friendly to him, Misha, as his subordinate and comrade, and strives to climb to the top of the demon race hierarchy to one day reclaim his former title and status.

Welcome to Freia. A continent where evil magi ruled. Until firearms came, that is. Now the people live free of those demons…

“Gege, what does cultivating feelings mean?? Is kissing when you eat someone’s mouth?? How are children born??” The 3-year-old Xiao Tu likes to chase after her ChangZhi gege and ask questions…

Ten years old Cheng Zhiyan had always seemed been studious and hardworking. However, when he heard these three questions, he was stunned and fled in an instant… until one day, a certain thirteen-year-old Xiao Tu pressed Cheng Zhiyan to the wall and kissed him. Then she smacked her lips to savor the taste and said: “It turns out that when you kiss orange juice, it really taste like orange juice ah…” the always calm and indifferent Cheng ZhiYan, once again fled in defeat.

**TN: ChengZhi Yan’s name sounds like orange juice

- Description from Novelupdates