unknown room

Philip open his eyes and saw the was sleeping in a not luxurious one person bed. He saw he was in a unfamiliar room. But before he could do something, a stink pain make his whole body shiver. The pain stay for about an hour. "huff.....huffff...haaa so i am in a fucking novle" he mamet to himself. Fast he could not believe his own memory but thir was no other explanation of his memory or to-be correct the bodys memory. The body has the same name as his. And the novle he transmigrated into is called Heavens Choose Mage. The novle was about a guy choose by the heaven and had a heavenly system. In this fantasy world every one has a system but as said the mc has a overpower system. He can gain exp from killing monster and beat come out from the Gate and dungeon. Philip started to thing about all the main events and lucky incounter he had in the novle. He took a dairy and started to writer down everything he remember about the novle and future event.The earth inside the novle is 5 time bigger the the original earth. and had different species as intelligent as human such as elf, orge, demon,dragon,beastman etc.There are different domains in earth as the human realm, demon realm, elf realm etc. after writing everything he known about the novle he came to a understanding that is there is no character name Philip Denov. In other word he is an extra....