Arya Permana hit the headlines when his mother put him on a last-ditch diet to save his life, as the 10-year-old tipped the scales at a whopping 30st 23lbs.
He was so severely obese, he spent most of the day lying down and was unable to walk, sit or play for longer than a few minutes.
His ever-growing giant frame had left his helpless parents with so much anxiety that they put him on a strict diet to stop him from bloating even further.
But with a dietician's advice, a new healthier diet and strict exercise regime in place, Arya has steadily begun losing weight - already shedding five kilograms in just a few weeks.
He can now not only sit but also walk to his school and play with his class mates.
Arya said via an interpreter: "I am extremely delighted. I cannot express my happiness in words.
"It feels great to be back in school. Everyone likes me here. Teachers treat me nicely.
"I have made many friends and they are very good to me. I also get to play with them. It is so much fun."
After the story of Arya's parents desperately trying to save him from dying hit headlines, doctors from Hasan Sadikin Hospital in Bandung in West Java Province came to his aid.
They monitored and investigated his condition for a week, and while they didn't find any major abnormality, immediately put him on a crash diet and activity program.
Now Arya eats healthily, walks for six minutes every few hours, does weight lifting and swims every day.
Dr Nia Nantia, Arya's dietician, said: "We have designed a diet and activity program for him. We recommended to his family a month ago.
"We have reduced his diet and increased his physical activity. We have also adjusted his sleep pattern.
"We have included lots of fibre vegetables in his diet and reduced carbohydrates. But the program would be upgraded from time to time.
"Our main focus is on his physical activity currently. The more he walks and plays, the more calories he will burn."
Arya's parents are now hopeful that their son could return to a normal, healthy weight.
His mother Rokayah Somantri, 35, said: "My son was growing up at a rapid rate and we were worried for his health.
"But now we are happy that he has guidance of doctors and have in fact lost some weight.
"I cannot wait to see him happy and healthy like other kids."
Arya was a sharp and regular student until three years ago, when he grew so big that walking became impossible for him.
He had to drop out of school and received home tuition.
But thanks to his new lifestyle, he was admitted to Cipurwasari Elementary School on July 18th, where he is getting a free education.
His father Ade Somantri, 45, said: "He was a topper in grade 1 and 2 but when he cleared for the third grade, he became so fat that he could not sit or move.
"There was no possible way for us to take him to school so he had to study at home for one whole year.
"He could not play or do anything else like other children. He would only watch TV or play on mobile phone. It was extremely painful for us parents."
Arya and his parents are hopeful that with continuing his studies, he could be able to fulfil his dream of becoming a machinist.
