Scarlet Rain, also known as Kuroyukihime's ally in the anime series Accel World, is a Level 9 Burst Linker and the Red King, leader of the Red Legion, Prominence. She's recognized for her petite stature and her formidable skill in battle, wielding a powerful artillery unit known as the 'Immortal Burning Flame.' Despite her youthful appearance, she holds a strategic mind and is instrumental in battles within the Accelerated World. Scarlet Rain's character is both assertive and intelligent, often displaying a fierce determination to protect her friends and achieve her goals.