In the War Between All Races, I Choose to Play the Role of the Heavenly Master!

Chen An traveled to this world and became a gray-haired old man. He went through the confusing period of finding a job after graduating from college and lived in a nursing home. It has been five years since we got the role-playing system, but it has been put to no use. I thought it would just stay here forever. Who knew that today, he would suddenly be selected as a participant in the war of all races, and he resolutely agreed to leave the nursing home and fight against all races. I am going crazy as a teenager! "This old man is still participating in a war between ten thousand races despite his age. Is he looking for death or not?" "To be disrespectful to the elderly, this opportunity should be given to young people. What's the use of being at such an old age." "Does the old man want to trick the human race to death?" "Don't tell me, the old man's outfit is quite tasteful, he has an immortal style." "Old man, can you please take it easy?" "It's amazing, the old man can actually jump over a 3-meter-wide tunnel." "Is that a strange beast? Was it beaten to death by the old man?" "This old man is not simple!" The introduction is weak, please read the text! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.