Ranking the Outrageous Tools of Anime Crossovers: The Truth Serum from the Start

A mysterious screen suddenly appears throughout the Myriad Worlds, showcasing Doraemon's unbelievable gadgets!

The Truth-Telling Pills are the villain's worst nightmare. Swallow a red pill, and you can only tell the truth for the rest of the day.

Light Yagami is stunned: this gadget would stop him from hiding the secret of the Death Note.

Aizen panics and blurts out, "Forbidding lies cuts off my escape route."

Even the innocent Nobita goes from "Telling the truth is great" to looking terrified at the thought of saying, "Gian's singing is awful." He instantly understands why "lying sometimes can save your life."

The Gorgon Medusa's head is extremely dangerous. Its glowing eyes can petrify living creatures. Nobita accidentally triggers it and his legs freeze, while his teacher picks up the gadget and turns straight to stone.

The Dictator Switch is even more terrifying: say someone's name and press the button, and they disappear, with nobody remembering them!

Light Yagami says frankly, "It's more convenient than the Death Note."

This novel and its characters are entirely fictional. Any resemblance to actual persons or events is purely coincidental. Do not imitate.