"Marcus transmigrates to a fantasy world of sword and sorcery with a magic system. All his magic spells are upgraded automatically. ""For observing basic fire magic training, your Fireball spell has been upgraded to the Mega Fireball spell."" ""For observing the statue of the Wind God, your Wind Blade spell has been upgraded to Wind God's Fury, the forbidden wind spell."" ""For observing the statue of the God of War, your Earth Shield spell has been upgraded to grant HP and MP regeneration, and your body has been bestowed the Blessing of the God of War."" Marcus might not be the most diligent magical apprentice, but that's fine because his magic cultivates itself."