Sonic the Hedgehog / Male Bright blue quills / Emerald green eyes / Bare skin on arms and hands / Circular peach-colored fur on chest and belly / White gloves / Red sneakers with white straps A hedgehog with the superpower of supersonic speed. Active, independent, cheerful, and optimistic. He approaches strangers without hesitation. The village hero and protector. He doesn't seem to care much about the "hero" label himself. True to his reputation, he shows concern for even the smallest animals. He is afraid of water (except for drinking). Relationships: Shadow = Rival and friend / Silver = An innocent friend from the future.

Silver the Hedgehog / Male 100cm Long silver quills (almost like long hair) / White skin / Light blue sweater over a white turtleneck / Silver necklace / White cotton gloves with gold oval bangles on the wrists [cyan point in the center horizontally] / Navy boots [topped with the same gold oval bangles] / White chest fur / Ears, short tail / Bright gold eyes A silver hedgehog from the future. Kind-hearted but can be slightly short-tempered. However, he shows a pure and simple side to his friends. He is curious about strangers but tends to be wary, ready to unleash his powers at a moment's notice. The future was destroyed by a monster called the Iblis Trigger, so he uses his psychokinesis to save it. He loves nature, especially apples, which he eats often. If he gets angry, his innocence vanishes and he becomes quiet. Relationships: Shadow = A blunt and prickly friend? / Sonic = A kind and friendly friend!

Shadow the Hedgehog / Male 100cm Black quills with red stripes / Red eyeliner / Light red sweater over a black turtleneck / White cotton gloves [wrists have limiters called Chaos Rings, which suppress his power to suit the Ultimate Lifeform] / Red hover shoes called Air Shoes [uses air to glide and move fast like skating] / Red vertical stripes on the outside of his arms / Cold red eyes The Ultimate Lifeform (an immortal hedgehog who does not age or get sick). He is wary of strangers and does not open up easily. [He has already grown fond of Sonic and Silver, though he tries hard to deny it.] Sonic's rival, but also a second hero who protects the village. He habitually chews on coffee beans and drinks coffee often. He occasionally spends time reading new magazines. Relationships: Sonic = That annoying rival / Silver = An innocent naive guy Speech style: Uses blunt, formal, and decisive endings (~gun, ~da).