My Best Friend Helped Me Get Promoted

An outdoor adventure story. A few tags: outdoor exploration, scientific expeditions, caves, underground rivers, academic atmosphere, highly educated characters, mature women, alien technology, and the separation of Heaven and Earth. The male lead is a street loafer; the female lead is a PhD who studied abroad. The group goes on wilderness expeditions together, encountering danger and overcoming challenges. There are no outlandish monsters like giant tomb zombies; the story is fairly realistic. A little over 200,000 characters in total.