She was on an island floating in the sky, connected for some reason to many other islands through teleportation devices to make a single continent out of them. The few powerful members of the Slow Life League lived in this home base.

-Volume 11 page 101

ここ は 宙 に 浮く 島 の 一つ で、 他 にも 似 た よう な 島 が たくさん ある の だ が、 どういう わけ か それら の 島 を 転移 ゲート で 結ん で 一つ の 大陸 として 扱っ て いる らしい。 　 この 本拠地 には、 スロー ライフ 同盟 で 同盟 員 と 呼ば れる 数少ない 強者 が 暮らし て いる よう だっ た。

-Volume 11 page 130

The Squid batted the falling angels away with its tentacles as it continued upward, punching through the clouds and into the open sky. Her eyes opened wide at the sight before her. Countless islands of varying size floated in the air.

“So, this is what those things are protecting.”

They could see the floating islands occasionally from the surface, but she never thought there were so many of them or that they were so large. The islands were populated by rich, varied scenery. There were mountains, rivers, roads, cities, and castles. A whole different world than the one on the surface lay before her.

-Volume 10 page 101