Usami of the Lightning, Shouting in Another World

Takeru Himura, a high school student who lives for muscle training, dies after being struck by lightning. When he wakes up, he is in another world called Mistoria, where monsters devour humans. Standing next to him is Rito Usami, the VTuber he admired on TV. Rito has become a real hero in this world, known as the Hero of Lightning. Takeru was bad at sports and bullied in his original world. But after meeting Rito, he learns the joy of training his own body. Following Rito's workouts, Takeru's b