Valley of the End is the second stage in the 47th Sub-Chapter, Ends of the Earth.
Battleground
THE SLOTH spawns at the beginning of the battle. A Doge Dark spawns 1.4 seconds after it begins and then they appear at 5-8s intervals infinitely. J.K. Bun Bun spawns 46 seconds after the battle begins along with a Dark Otter. 2 more Dark Otters appear 22-23 seconds apart.
Strategy
Row 1: Mohawk, Manic Mohawk, Catburger, Gato Amigo, Cameraman
Row 2: Can Can, Tathagata (or Sanzo), Luxury Bath, Maglev, Awakened Bahamut
Stall the first Doge Dark with light catspam and a Maglev. Maglev needs to hit the Doge twice to kill it. Repeat this process until the boss (J.K Bun Bun) appears. Send out everything but Bahamut. While fighting Bun Bun, time Maglev so that it hits the Dark Doges to gain extra money. Make sure only one Tathagata is out at a time (or, if using Sanzo, don't spam it too much) as THE SLOTH kills it in one shot, as does Bun Bun. After Bun Bun is dead, wait for only THE SLOTH to be on the battlefield and send out Bahamut as well as supporting Can Cans, and time it so Bahamut doesn't get killed instantly. Once THE SLOTH dies, you win.