Doomsday Cold Wave: Surrounded by Beauties in My Shelter

A deadly extreme cold ravages the globe. In a morally collapsed apocalypse, he falls into a trap because of his kindness—locked outside in a raging blizzard by the girlfriend he trusted most, dying miserably in the freezing cold and hunger. Given a second chance at life, he not only gains advance knowledge of the apocalypse but also acquires a shelter system that can upgrade infinitely! The system can automatically build a temperature-controlled ecological zone, provide endless supplies, and issue special recruitment missions that lead him to meet beautiful women of every profession, one after another. On the frozen wasteland where bones lie exposed in the wild, he sits atop an impregnable steel fortress, coldly watching the enemies from his past life...