Synopsis: Shin Megami Tensei - If...

Nobu, an ordinary high school student, happened to be handling a floppy disk on the school computer when an unexpected incident occurred. A demon emerged from the screen and brutally killed everyone around him. Filled with terror, Nobu ran to seek help from his teacher, but he met his classmate Yumi Shirakawa instead. Together, they struggled to understand the bizarre turn of events, only to stumble upon their science teacher using hypnosis to transform their classmates into evil beings. The teacher threatened to harm Nobu and Yumi, claiming to be working for the "God Emperor" and perceiving them as hindrances. Trapped within the confines of the school premises, Nobu discovered a demon-summoning algorithm on the floppy disk. With no other options, the pair decided to summon these demonic creatures to defeat their attackers and reclaim their normal lives.