A dimensional rift has opened.
Stop the endless waves of hostile entities and defend a world on the verge of collapse!

**Defense Service** is a special response agency created to protect humanity from dimensional disasters.

Mysterious rifts are appearing across the world, releasing dangerous unidentified entities.
Your mission is to eliminate the threats, secure the area, and stabilize collapsing dimensions before it is too late.

And today,
you have been assigned as the newest agent on the front line.

**Hold Back Endless Waves of Enemies**

Deploy to active rift zones and stop the relentless enemy assault.

Your top priority is simple: prevent enemies from breaking through the defense line and survive the operation.

Easy to play with one hand, but as the battle intensifies, quick decisions and smart choices become the key to victory.