Kakusei's Ulterior Psychologist 5: In Between the Games.

In the frozen seclusion of the Kakusei HQ, a heavy snowstorm has forced its volatile residents indoors, but the cold outside is nothing compared to the heat rising within. While a simple game of chess between the battle-hardened Niko and the deranged Tsukasa threatens to devolve into a full-scale brawl over "e;illegal maneuvers"e; and imaginary rules, Dr Kakusei has a more delicate mission in mind...