Around Haruka Hara, who works for a video production company, an invisible anomaly begins to quietly spread. An internet meme that her colleague Honoka eagerly pursues—a rumor that something "happens" on July 5, 2025, at 4:18 a.m. Is it a coincidence that day coincides with Haruka's birthday? ...
The fourth play in the 'Heli-X' series. When Sadness woke up, she was alone in a dimly lit place. A small ray of light illuminated the knife in her hand. When she looked at the ground, she saw a large pool of blood and a motionless body... A corpse with a face she recognised. Was Sadness the one...
