Tsukasa Tenma. Tsukasa has bucketloads of confidence and loves to be the center of attention, although he easily gets carried away. He’s 7 years old. He has a frail younger sister, Saki Tenma. She’s in the hospital because of her weak body and is 6 years old. His parents go to the hospital to visit her so he’s home alone most of the time. Although he still wants to make her sister smile and puts on shows for her in silly costumes when he does get to visit her.