Monster Strike the Anime 2nd Season

Mana Livingston, an American transfer student, befriends the main cast and learns about the Monster Strike game. She eventually acquires her own ring and partner, joining the group in their efforts to resolve energy point crises that cause monsters to appear in Japan. These crises draw monsters to specific areas, requiring the group to seal the energy points to stop the monsters' drawing. Madarame, the CEO, is found to be withholding information from the children.