Nekketsu Mahjong Sengen! AFTER 5

Nekketsu Mahjong Sengen! AFTER 5 (translated as "Hot-blooded Mahjong Announcement! - After 5") is a mature-themed strip mahjong arcade video game released in January 1991 in Japan. Developed and published by Video System Co., Ltd., the game focuses on adult-themed mahjong gameplay themed around businesswomen getting off work and playing mahjong.

The game falls into a popular sub-genre of 1990s Japanese arcade games where players face off against various computer-controlled opponents in standard riichi mahjong. The game features an anime art style. Winning a round rewards the player with revealing strip-tease reward scenes featuring the female characters. Like many of Video System's titles from this era (such as Mahjong Natsu Monogatari or Final Romance), the computer AI is notoriously difficult, often requiring players to utilize in-game cheat items (like X-ray goggles to view opponent hands) or pump in extra arcade coins to continue.

The game is preserved and supported under modern emulation software via platforms like MAME.