Subway Survival: It Starts with Watching Ads with a Witch

[Everyone's Survival + Doomsday Farming + Infinite Flow + Battle Progression + Multiple Heroines]

Overnight, everyone on Blue Star transmigrates to a world of subways, where staying alive becomes everyone's top priority.

Though this is a digitized world, every basic need for survival is real: water, food, supplies, even materials for leveling up...

Every 12 hours, the subway arrives at an unknown station.

Beyond the doors might lie another world teeming with monsters, a city overrun by zombies, or even a supernatural realm ruled by Cthulhu-like horrors.

Players can level up, subways can level up, and so can the difficulty of the unknown worlds!

Li Zhu awakens the [Ad System]. By consuming emotions (sanity), he can unlock:

[Watch an ad to revive, once per day]

[Watch an ad to get everything, once per day]

[Watch an ad to double rewards, once per day]

[Watch an ad to speed up progress, once per day]

[Warning: Ads are corrupting and will lower your mood. Keep it in check.]

From a tiny carriage to an ironclad dragon city, welcome to my... Subway Dragon City.