Complex sentence: The plot follows the story of a boy named Yugi Mutou, who solves the ancient Millennium Puzzle, and awakens a gambling alter-ego within his body that solves his conflicts using various games.
Split into simpler sentences: The plot follows the story of a boy named Yugi Mutou, who solves the ancient Millennium Puzzle. Yugi awakens a gambling alter-ego within his body that solves his conflicts using various games.