wait wait, what if that tree is his half brother, like:
1st life, dad and son, dad betrays son or something, they die
2nd life, dad is in our world, he does his thing, then MC killed him
3rd life, the current one, dad cameback to the other world as a dragon
so this tree is his first son, so technically it is MC half brother from another world
wilddeath
hold on… is this crouching isekai hidden reincarnation?
onelasrter
wait wait, what if that tree is his half brother, like:
1st life, dad and son, dad betrays son or something, they die
2nd life, dad is in our world, he does his thing, then MC killed him
3rd life, the current one, dad cameback to the other world as a dragon
so this tree is his first son, so technically it is MC half brother from another world