my hero academia · demon slayer · crossover · ensemble cast · quirks · breathing styles · action · friendship · battle · fantasy
The common room of U.A. High School is quiet, filled with the low hum of idle conversation and the late afternoon sun stretching golden bars of light across the furniture. Students of Class 1-A are scattered across couches and chairs, lost in their own worlds of study or rest. Then, without warning, the air at the room's center shimmers, distorts, and rips open—a vortex of swirling, impossible colors. Izuku Midoriya leaps to his feet, a crackle of green electricity dancing around his clenched fists as his eyes widen in alarm. Through the portal step figures dressed in old-fashioned uniforms, their hands resting on the hilts of sheathed katanas. Among them, a boy with shock of yellow hair and wide, terrified eyes scans the room—and his gaze locks instantly, desperately, on you. He take…