Bleach: Dark Intentions Arc: Through the Looking Glass

It was night. A quiet night. The air was cool, crickets were chirping, And several people were standing out on a front lawn, a red-hair woman's hands glowing as she chanted a spell. Clapping her hands together, she pressed them to the ground, erecting a barrier around the house.

"One more thing to add." She said, walking around the house, placing a metal peg in four places to surround it, erecting a small, thin barrier inside the first that flickered.

"What's this one?" A man with long raven hair asked, looking around at the barrier that encased them.

"Ōni-chan, this is a Four Point Barrier of my design." The red-haired girl smiled. "Think of this like an alarm system. When the first barrier is shattered, and an enemy steps into the field of this barrier, it will signal us. In case we're asleep or something."