After Xia Feng transmigrated, his heart was inexplicably dug out.
In its place was a damaged Demonic Heart, with only enough vitality to sustain him for eighteen years. This was a miraculous ...
Explain clearly
I don't really want to spoil the story, but I'll say it anyway: He is not Sirius... Of course, this is not a spoiler. The previous chapter was about this, but it didn't mention why He thought he was Sirius.
Also, Xia Feng is Sirius only after binding with Mu and synchronizing with Mu. You probably all remember this. So Xia Feng isn't the original Sirius, Mu is. See the beginning of this book for details.
(End of this chapter)