MC is pouring his resources on a magus tower I think which he is building in his territory. He is currently in a world of another warlock like him who did not have pure bloodline and ran away from his world. If the number is coming to mind, then let the fingers work. Thank you!
MC conquered a world where he made a coin out both the hero and the villain he himself created. After this part, he finds that there is another person of similar bloodline to him, only this person's bloodline is way weaker and later this person submits to MC and bring him to his world. Here MC meets the elders of his bloodline and is granted title and land, and on this land he invests his earned resources on a magus tower.
Thats not a different world, thats the Twilight Area... the one thats underneath the surface of the planet, a portion of the first subterranean level. If my memory serves me, thats somewhere in the 300s, but I'm not certain. I'm pretty sure that the other warlock was a rank 3 with the bloodline of the Black Horrall Snake, which is inherently weaker than the Giant Kemoyin Serpent bloodline. He was framed for something or other by someone in the Ouroboros Clan, and fled to the Twilight Area according to some story passed down in his family about the secret passage of the volcano... I should probably stop myself before I end up telling the whole story XD
The central continent arc starts at Ch 392. The ToC on WuxiaWorld is up to date, so you can check there too.
Alright thanks @Mufarasu and @static7s I will go and see what attracts me in later 300s and earlier 400. Once again, thank you!