, titled "Clash: Part 1" , marks the beginning of the "Succession Contest" arc's descent into a bloody underworld war on the Black Whale [1, 2]. This chapter focuses on the internal power struggle between the three Kakin Mafia families—the Xi-Yu, Cha-R, and Heil-Ly—shifting the spotlight away from the Royal Princes to the organizations that support them [2, 3]. Chapter 390 Summary and Key Events
: Underboss of the Xi-Yu family and the primary protagonist of this chapter [2, 3].
: The leader of the Heil-Ly family whose nihilistic goals drive the current conflict [2]. , titled "Clash: Part 1" , marks the
: Xi-Yu members assisting Hinrigh; Lynch has a Nen ability that forces people to speak the truth when she punches them [1, 4].
: The chapter provides a showcase for Hinrigh’s versatile Nen ability, "Biohazard" [2, 3]. He can transform inanimate objects into living creatures while maintaining the object's original function [1, 4]. For example, he turns a firearm into a snake that still functions as a weapon, allowing for unpredictable and lethal attacks [3, 4]. : The leader of the Heil-Ly family whose
: The Heil-Ly family, under their chaotic leader Morena Prudo, has begun a "leveling" game where members gain power by killing others [1, 2]. This chapter shows the Xi-Yu family reacting to the Heil-Ly's indiscriminate violence, which threatens the "rules" of the underworld that keep the ship from falling into total anarchy [3].
: The Xi-Yu family, led by Underboss Hinrigh Biganduffno, is actively searching for Hisoka on the lower tiers of the ship [1, 3]. Their goal is to find him before the Phantom Troupe or the rival Heil-Ly family does, as Hisoka's presence is a wildcard that could disrupt the balance of power [2]. He can transform inanimate objects into living creatures
: The chapter concludes with a brutal skirmish where Hinrigh and his subordinates eliminate Heil-Ly assassins [2, 4]. This sequence establishes Hinrigh as a cold, efficient tactician and sets the stage for a three-way war between the Mafia families, the Phantom Troupe, and the Zodiacs [1, 3]. Key Characters in Chapter 390