From the back of the box:
'At Go-nin-Kan or 5 hands Kan, Kankei team consist of adhoc two players against Non-Kankei team with three. This special deck featured Japanese four seasons as suits (Spring: Night cherry blossom. Summer: Beech leaf. Autumn: Apple fruit. Winter: Snow crystal).
'And as picture cards, the summer celebrations Neputa (sleeping-purging) and Mushi-Okuri (worm-purging) are illustrated. In addition, this set includes marker cards for display playing situation obviously!' [sic]
Time: 1 hour+
Ages: 10 and up