

DR² Night Janki is a mahjong game featuring adult content. It offers two gameplay modes: "Story" and "Regular." In Story mode, the setting is a medieval castle known as a historic site of sorcery, now ruled by the enigmatic Rumira, who operates a mahjong club there. The protagonist, a man named Ryuuji, chooses to explore the castle, challenging its residents through mahjong duels to uncover its secrets.