Sunpyre (real name Leyu Yoshida) is a fictional character of the Marvel Universe associated with the X-Men. She is the sister of Sunfire.

Leyu Yoshida and her brother Shiro were born to a mother who suffered radiation poisoning due to exposure to the atomic bombing of Hiroshima, Japan. As a result, she and her brother were born mutants, possessing identical powers. Her brother would go on to be the well-known Japanese superhero Sunfire.

Leyu first appeared, during the Eve of Destruction storyline, when she joined the X-Men for a single mission, to help fight Magneto. Jean Grey had summoned her brother, but instead got Sunpyre, as Shiro was unavailable at the time. Sunpyre fought valiantly against Magneto, but almost lost her life when the master of magnetism constructed a metallic cocoon around her. After the mission was completed successfully, Sunpyre chose to return to her home instead of stay in the United States with the "arrogant" X-Men.

Banshee later requested her to join his X-Corps (again replacing Sunfire, who didn't want to join). This time she was removed from the front lines and instead spent most of her time in the laboratory studying the mutant Abyss. When Mystique, who had infiltrated the group and brought together the other former villains, began her plan for taking over the X-Corps, Sunpyre was one of the casualties. Mystique stabbed her to death, and as Banshee found her, he too was stabbed and almost died. Mystique had wanted to release Abyss, but she got more than she bargained for when the mutant was unable to turn off his powers and sucked the shapeshifter into the dimensional void in his chest cavity.

An extra-dimensional Sunpyre later appeared as part of Big Hero Six in Alpha Flight vol. 3 #9. Fellow teammate Honey Lemon pulled Sunpyre out of Lemon's Power Purse, resulting in Sunpyre worshipping Honey Lemon as a goddess and Sunpyre joining the team. Sunpyre and Ebon Samurai were both created to fill in the void left by Sunfire and Silver Samurai, who were being used elsewhere at the time.

Scott Lobdell clarified the relationship of Honey Lemon and Sunpyre in the Marvel Teams Handbook 2005.

Sunpyre had powers similar to those of her brother, Sunfire. She could convert solar energy into burning plasma, which she could use to fire blasts of heat and flame, surround herself with an aura of solar-powered fire, and fly (by riding convection currents created by superheating the surrounding air with her aura of flames). Also, she was resistant to most forms of radiation, and could see heat by attuning her eyes to the infrared wavelength of the light wave.

• The second Sunpyre's profile at the Appendix to the Handbook of the Marvel Universe
• Sunpyre on the Marvel Universe Character Bio Wiki

X-men members