Disinheritance and Legally Reserved Share in Japan

Methods to prevent specific heirs from inheriting in Japan: (1) Exclusion (Civil Code Art. 892) - family court can strip inheritance rights for abuse, serious insult, or grave misconduct; available pre-death or by will (Art. 893); strictly judged, rarely granted. (2) Will-based allocation - can set specific heir's share to zero, but subject to legally reserved share. (3) Disqualification (Art. 891) - automatic for murder/attempted murder, failure to report, or will forgery. Reserved share (Art. 1042): spouse/children get 1/2 of legal share, lineal ascendants 1/3, siblings have none. Infringement claims (Art. 1046): monetary only since 2019 reform, 1-year/10-year limitation.