Yes, I change everyone's chakra as they train and fight. The amount I add is determined by a secret method..
Did you think it was a robot or something? Lol..
Chakra 1, 2 and 3 are for different characters. For example, my 1st character is Uchiha Satori, who has 50,000 chakra, while my second is Atsuka Nirubi who has 25,000.