Si Yoyo.

Satrio, nicknamed Yoyo, is a 23-year-old guy with a limited intelligence equivalent to an eight-year-old child, as he suffers from Mental Retardict. He sees life with all naivety, for him everyone is a friend and every problem is a playground that he must play with a smile. Yoyo spends his days spreading kindness and doesn't care if someone insults him.