First Battle of Minecraftia

The First Battle of Minecraftia (マインクラフト国の最初の戦い) was the first of two major conflicts between Minecraftia High School and Team Crimson. The battle took place in March 2005 with Team Driller growing victorious over Kumiko Uchida's Super Seal spell cards used by most of Team Driller's combatants.

The battle began after Hearthcliffe was expelled from Minecraftia High School for his destructive behavior. For revenge, he declared an all-out attack on Minecraftia High School in an attempt to defeat Ryan Tenmetsu. When Tenmetsu was aware that Hearthcliffe was after him, he decided to fight back with his students.

Rise of Hearthcliffe
In March 2000, exactly five years before the battle happened, Hearthcliffe killed Hikari Uchida and make the knife into his first horcrux. That knife would later be used for him to commit more murders around Minecraftia.