Ikenie no Yoru (イケニエノヨル lit. "Night of Sacrifice"?), is a horror, adventure video game for the Wii console. It has not been released out of Japan.
A group of college students have decided to take a trip to a place called the Tsukuyomi Ravine, where people used to sacrifice to the gods. There are five main characters in this game, which the game encourages the player to rename them with the names of his/her friends: Black, Blue, Yellow, Pink and Red.
Black invited the group to the ravine and his father owns the mansion which they're staying at. Red is the leader of group and being he strong-tempered. He starts the whole mess with statement "Let's test our courage". Blue however, is kind and has strong sense of justice. Yellow, has a pure heart - she is kind, well raised and nice to people. Pink states her opinions clearly and make sure everyone hears them. Also, mysterious young girl comes along the game and she seems to get along with Yellow. An extra character, "You", is playable in the epilogue of the story.