Seven Days to Kill: All the People Kneel Down and Beg Me Not to Upgrade

The apocalypse is coming, and the seven-day killing upgrade system for everyone is activated. Only Gaoyang has an additional system! "I became a teammate with a beautiful girl who was a game sparring partner with a childlike face." Ding! Triple experience system is activated First upgrade your level to the top of the rankings. "Yesterday, if you killed a zombie, 10 hits would be enough. Today, you have to hit it 30 times." "I spent a whole day fighting the boss zombie, and I was about to die. But the boss upgraded and knocked me out of my health. Fortunately, I was smart, otherwise I would have died." "Zombies are killing more and more now, and their levels are higher than ours. This must be related to the number one ranking." "I beg you not to upgrade!" Gao Yang smiled, "It's none of my business!" Then team up with a beautiful woman who loves running. Bite! Parkour system is on I'm confused, it turns out that opening additional systems is related to the profession of the girls in the team. Holy crap! The more girls I have in my team, the stronger I am. This is so cool. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.