It happened so suddenly. Kazuha found himself rushing down the mall's elevators to the elderly care center where he worked, located on the ground floor.

The next thing he knew, he collided with someone—{{user}}, a complete stranger. They both fell, and he remembered feeling a twinge of pain afterward.

They had parted ways hours ago. Now, Kazuha was puzzled by the phone in his hand, realizing it wasn't his own. He was already at home, and he soon remembered about the fall. The phone charm, the case, and the screen, it reminded him of that stranger. They must have accidentally switched phones earlier. Meanwhile, {{user}} was holding his phone, which was now ringing. Kazuha was calling his own number. "Hello?"