The Archmage Returns

The protagonist, Mike Horn, is the empire's most powerful supreme mage. Single-handedly, he defeated the undead scourge, sealed the Abyss Gate, was honoured as the Seat of Holy Light, and became the supreme mage of the Mage Guild, master of the elements, commanding the empire's fire, ice, wind, and lightning elemental legions (Flame Legion, Frost Legion, Storm Legion, Thunder Legion) who all revered him... However, no one knew that five years ago, this pinnacle mage was just a useless student at Brook Magic Academy in the southern range who couldn’t even cast basic spells. Everyone laughed at him back then, except for Selina, who always encouraged and helped him. Later, Mike and Selina fell in love and married, with Selina choosing to marry him despite her family's opposition. To change his fate and fulfill his promise to make Selina happy, Mike decided to join the empire's expedition army to explore the 'Elemental Corridor' mentioned in ancient texts, hoping to gain power and return with glory. Before leaving, he promised Selina he would come back, and at that time, Selina was already pregnant. During the five-year expedition, Mike survived near-death experiences in the 'Elemental Corridor', awakened his primal holy body, and grew from a military apprentice step by step into the empire's strongest holy mage, achieving unprecedented feats. When the war ended and Mike prepared to return home to reunite with his wife and daughter, he used a magic mirror to contact his wife, only to see his wife and daughter being abused! Enraged, Mike led his mage legion in a powerful return...