Muzan, the demon king, uses his blood and active consciousness to create demons. To combat Muzan, the Demon Slayer Corps was created with the single duty of eliminating all demons. Tanjiro, a member of the Demon Slayer Corps, discovers that his sister, Nezuko, has become a demon but decides to save her since since she has retained her human consciousness. In the end, Nezuko, through immense willpower and aided by the human transformation drug of Tamayo, a doctor, is successfully able to regain her full humanity. On the other hand, Tanjiro was successfully able to defeat Muzan but now is near-dead from the injuries he sustained. However, in an alternate universe with a tragic twist of fate, Muzan, in his dying moments, successfully transfers his blood and consciousness to Tanjiro. While Tanjiro has now become a sun-resistant demon, Muzan's active consciousness controls Tanjiro. Muzan now uses Tanjiro's body to spread his blood and create more sun-resistant demons. However, Muzan discovers that Tanjiro would experience lucid intervals when Tanjiro is near his sister, allowing Tanjiro to temporarily regain his consciousness. Nezuko knows that the only way to stop Muzan is to suppress his active consciousness during a lucid interval and kill his brother.

Terra nullius (Latin for “land belonging to no one”) is an old doctrine in international law which asserts that any unclaimed territory may be acquired through two key elements: animus occupandi (or “intention to occupy”) and corpus possesionis (or “actual physical occupation”)

Drag Race is an international franchise which features drag performers who compete to win. For the non-regular "All-Stars" season, producers have the option to exclusively cast returning drag performers who previously competed in the same local franchise (e.g., Drag Race Espana) or adopt a versus-the-world format which would cast drag performers from different international franchises who largely represent their own home franchises (e.g., Drag Race UK versus the World, Drag Race Philippines Slaysian Royale).

In many countries, assisting or abetting someone to commit suicide is a criminal offense.

In the Philippines, "The Big One" refers to the speculated scenario that a catastrophic Magnitude 7.2 earthquake will be generated by a major movement of the West Valley Fault. This is anticipated to severely affect Metro Manila and surrounding provinces in Luzon including Bulacan, Rizal, Cavite, and Laguna.

In contrast, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) classifies Palawan as a province with low seismic hazard because it is situated on a more stable continental block and lacks major active fault lines. This means that Palawan is less likely to experience high intensities of ground motion.