I Use a Two-World Gate to Connect Every Dynasty of Huaxia

[the Myriad Worlds + imperial dynasties + no female lead + technology + immortal cultivation + lie flat] Qin: Heh heh heh... Ahem, sorry, fellow Daoist. Come have a chat inside my Imperial Human Banner. Han: Hahaha, don’t run away! I’m only going to blow myself up, so why are you running? Tang: Tang Dynasty Immortal Cultivation Services: All alchemy cultivators are reminded not to throw cauldrons about to explode at the enemy. It’s inhumane. Tang: I’ve only thrown out one percent of my stock. How come the enemy’s already gone? Ming: Take this sword strike! And at last, when our horses trample beneath the cherry blossoms, we’ll build a mound of skulls beneath Mount Fuji!