Toaru Kakutou Shoujo no 4-Nenkan ni Wataru Zecchou Zetsubou Gomon Kiroku
Magnetic Manipulation: She uses magnetism to move metal objects, navigate using iron sand, and even walk on walls [5.1, 11]. Mikoto-s Four-Year Breakdown.14
Mikoto directly goes against Touma's wishes and ideals in GT14. Toaru Kakutou Shoujo no 4-Nenkan ni Wataru Zecchou
Based on the title format (Mikoto-s Four-Year Breakdown.14), this appears to be a chapter from a specific story—likely a fanfiction or a web novel series focusing on Mikoto Misaka from A Certain Magical Index / A Certain Scientific Railgun, or potentially Mikoto Suoh from K. navigate using iron sand