In a world where conflict reigns, Rushuna, a skilled and beautiful Senshi, embarks on a mission to spread peace and tranquility. Her approach is unconventional: instead of fighting with guns, she uses her smile to disarm her enemies, removing their will to fight. With a talent for marksmanship, Rushuna is forced to defend herself, showcasing her impressive gun skills. Along her journey, she meets Yajirou, a mercenary who wields a sword, and together they form a formidable team.