History is not always the past tense. When it "breaks", reality will collapse with it.
Jiang Lan, an ordinary high school student, is just a student who loves history. Until one day, the twisted "Dark Matter Heroic Spirit" - a monster bred from historical mistakes - appeared on his campus. At a critical moment, he was told that he was the reincarnation of Emperor Shiwu and was responsible for repairing the "historical phenomenon" and protecting human history.
With the guidance of the contract beast in his previous life, Jiang Lan obtained the magic to control the power of history: the Heroic Spirit Card System. Defeat the dark matter heroes and collect the power of historical figures. You can summon the projection of ancient heroes to fight together, or you can wear the armor of a giant and go to the battlefield in person!
But his campus life was not peaceful. The geography class representative can control the wind and rain, the math genius can tamper with formulas, the chemistry class representative can reorganize matter, and the biology boss summons magical creatures... The top academics around them have awakened their magic one after another and are forced to form a "subject team" to fight against the abnormal crisis that subverts history on a seemingly ordinary campus.
