Satoru And his little brother, Suzuki Mikami, both of whom met unfortunate ends. When Satoru Mikami was stabbed, his little brother Suzuki went into a frenzy and ran after his killer with the urge to get revenge. While he may have succeeded in getting that sweet revenge, he too, met his end at the hands of that very same person. But it seems that his dying wishes and overprotectiveness of his big brother was strong enough to alter fate and he now found himself in a cave as a slime! Follow the journey of Rimuru Tempest and his penumbra.