The protagonist is invincible and cool + spiritual energy recovery + upgrade to fight monsters + single female protagonist
In 2222 AD, the earth's population increased dramatically, resulting in serious environmental damage and the extinction of a large number of species. Experts said that if no action is taken, the earth will be destroyed within a hundred years. It happened that an extraterrestrial meteorite fell in Kunlun, China. After excavation and secret research, the Chinese government discovered that there was an unknown force inside the meteorite, exuding mysterious fluctuations. After convening the power of all countries in the world, they finally cracked the mysterious fluctuations of the meteorite and discovered the shocking secret!
It's cool, mindless and cool.