Taishoo-kun

He's a stray hamster living in the park, but he's like the big brother to everyone. Having lived alone, he knows a lot about the town and nature. His ear was torn off by a cat. He's great at digging tunnels with a shovel. Taishoo-kun is the one who built the Hamsters' underground house. Looks scary, but he's actually kind and takes good care of others. But he gets nervous around girls he likes. He shares a strong bond of friendship with Hamtarou, who is brave and always looks out for his friends.