Synopsis
In the absence of Ichika Orimura, who is visiting the facilities at Kuramochi Engineering, an unknown enemy breaks into the core systems of the IS Academy, causing widespread chaos. To counter this threat and fix the damage, Ichika's sister, Chifuyu, calls on Ichika's harem: Houki Shinonono, Cecilia Alcott, Huang Lingyin, Laura Bodewig, and Charlotte Dunois. They work together to access the academy's network through virtual reality and face the attackers. Unbeknownst to the girls, a harmful program called "World Purge" activates as soon as they enter the digital world. The software traps them in fabricated realities, each showing an idealized romantic scenario with Ichika. When he returns to the IS Academy, Ichika takes action to rescue the five girls from these virtual fantasies.
