"Welcome Kokurisan" is a Windows-based short novel game developed by CyberStep. The game revolves around the currently active Vtuber, Kurune Kokuri, who appears as the main character and takes the player on a journey to investigate the seven wonders. The game is categorized as an adventure game and features ASMR voices in some scenes to create an intimate atmosphere.

The game begins with the nervous chanting of "Kokkuri-san" spell in a school late at night, which summons an adorable sky fox named Kurune Kokuri. The investigation of the seven wonders with Kurune Kokuri begins in the classroom, home economics room, and nurse's office. The game features a mischievous sky fox who loves pranks and is trying to enjoy exploring the seven wonders with the player.

The game is recommended for those who like VTubers or ASMR, those who want to enjoy heartful stories, and those who like ghost stories and occults. "Welcome Kokurisan" is a part of the novel game brand "Rabbitfoot," which delivers novel games casting active YouTubers and VTubers as game characters.