Sword and Sorcery: I'm Surrounded by Weird and Wonderful People

[Sword and Magic + Hilarious Life + Tucao Master + Detailed Reasoning + Cthulhu + Weird God] I am Wang Hai, an unlucky guy who acted bravely on the street but jumped on the spot. Traveling through the world of swords and magic with the wisdom of an old bookworm of more than ten years. Learn mathematics, physics and chemistry well and create new magic! I want to make a big difference in the new world! Etc? Why do I start in a coffin? The tsundere young lady is secretly obsessed with me, but her yandere follower wants my waist every day? Gram tenants forcefully move into Dreamland and urge me to kill someone every night? Have you ever seen a shy and cute muscular man act coquettishly at you? Have you ever seen an iceberg beauty who is addicted to the literature of a tyrant forcing you to rape her? Have you seen the Lightning Dharma King too much and seen the Static Lightning God? Yes, these gods are all around me. Come and save my life personally!