Death Note, Vol. 4

With a second self-proclaimed Kira killing in his name, Light Yagami finds himself pulled deeper into the very investigation meant to expose him. L, never fully convinced of Light's innocence, brings him onto the task force to help track down the copycat — calculating that proximity is the surest way to catch his suspect in a mistake. What follows is a tense stalemate: two of the sharpest minds in the series circling each other, each aware that a single misstep could end the game.

Volume 4 introduces Misa Amane, a pop idol whose devotion to Light is matched only by her own hidden Death Note and her fiercely protective Shinigami, Rem — a sharp contrast to Ryuk's detached amusement at the whole affair. Misa is as much a liability as an asset, and her arrival reshapes the dynamic Light has spent three volumes carefully building.

Ohba and Obata keep tightening the screws here, deepening the series' central question of whether power inevitably corrupts even a self-styled agent of justice. The volume builds toward the revelations that close out Death Note's first major story arc, cementing its reputation as a psychological thriller built on strategy, suspicion, and slowly eroding morality.