Seppuku to prefer Chinese readings in official announcements, only the term seppuku was ever used in writing. So hara-kiri is a spoken term, but only to commoners and seppuku a written term, but spoken amongst higher classes for the same act. The practice of performing seppuku at the death of one's master, known as oibara (追腹 or 追い腹, the kun'yomi or Japanese reading) or tsuifuku (追腹, the on'yomi or Chinese reading), follows a similar ritual. The word means "suicide" in Japanese. The modern word for suicide is . In some popular western texts, such as martial arts magazines, the term is
Samurai Warriors 4 2015, North America on September 29, 2015, and in Europe on October 2, 2015. It is described as neither a continuation nor an "Xtreme Legends" expansion like previous games; instead, it provides a "different" focus of the same game. Players choose a character as their protagonist for a selected scenario, which has a different progression depending on the character selected. Dream Castle Mode, first introduced in "Samurai Warriors: Chronicles 3" is also present in the game. The game adds one new character, Naomasa Ii, to the character roster. A second expansion, was released in Japan on September 17, 2015 for