Diabolik Lovers: Chaos Lineage is an otome visual novel where Yui Komori is trapped in an alternate world with 13 amnesiac Sakamaki, Mukami, Tsukinami, and Kino vampires. The vampires split into reshuffled families (Scarlet, Violet, Orange) battling to become Demon King using Yui as sacrifice. Your two-choice dialogue decisions (white/black chessboard judgment system) determine good or bad endings per character across 15-chapter routes plus family prologues. Features moral decision tracking and unlockable CGs based on affinity. Single-player Nintendo Switch exclusive, ideal for fans of vampire drama with multiple endings.