Issei Todoroki leads the idol unit Lancelot. At 25 years old, he stands 187 cm tall and weighs 64 kg, with vibrant orange hair and golden eyes. His birthday is May 5th, and his blood type is AB. Within Lancelot, he performs on saxophone and guitar. His bond with fellow members Futami Akabane and Takamichi Sanzenin dates back to high school, forming a foundation of deep trust; he also attended the same school as the Producer.

Issei exhibits a quick temper and confrontational streak, prone to picking fights when uncomfortable. Yet beneath this exterior, he harbors an awkward but caring nature. His reliability shines in practical skills, especially cooking—he often prepares meals for group gatherings since Futami and Takamichi lack culinary ability. Specializing in Chinese cuisine, his iwaku miso soup is a particular favorite of Futami.

Beyond the stage, Issei crafts silver accessories and rides his motorbike. He favors spicy dishes but avoids apples, and while he typically keeps his guard up, he has a soft spot for animals. Horror movies captivate him, and he watches them enthusiastically even as Futami and Takamichi voice their fear.

Issei doesn’t recall childhood aspirations beyond his current path. His journey with Lancelot unfolds at Étoile Vio School, an academy for aspiring male idols run by the talent agency Ailedore.