Bring the milk to boil. Add sugar and mix till it dissolves.
Add cocoa powder and milo. Mix everything until it blends together.
Meanwhile, add water in a pan. Bring it to boil. Add Agar-Agar strips and cook until there are no strips visible.
Now add the Agar-Agar mixture into the boiling milk and cook for 3 more minutes to blend them together.
Now remove from heat and wait for some time to reduce the heat.
Do not keep outside for a long time, otherwise, it will set in the pan.
Pour the mixture in small cups or your favourite moulds and keep refrigerated until you serve.