Stranded at a Dongguan Electronics Factory, Taken In by My Landlady

[Urban fantasy + System + tycoon + multiple heroines + landlady] Lin Chuan unexpectedly obtains a choice System during the apocalypse. His first choice gives him 100 billion yuan and sends him back to 2008. He is only nineteen, but already has five years of work experience, including a year at an electronics factory in Dongguan... With the apocalypse still thirty years away and 100 billion yuan from the System, Lin Chuan initially thinks he can spend the rest of his life getting massages, tipping streamers with virtual jets, and enjoying luxury cars and beautiful women to his heart's content... But the System stipulates that its funds can only be used for things related to purchasing real estate, building an apocalypse fortress, and preparing supplies for life after the apocalypse... So Lin Chuan begins a daily battle of wits with the System, looking for bugs to exploit... I own so much property, so there's nothing wrong with becoming a landlord, right? Food, drink, and clothes will all come in handy during the apocalypse. There's nothing excessive about buying a few factories, is there? You ask why I bought a foot massage parlor? Don't zombies need their feet washed during the apocalypse?