■ Sengoku Hanafuda evolves into RPG "What is Sengoku Hanafuda Battle?" ■ Sengoku Hanafuda Battle is a Hanafuda RPG that fights against Sengoku warlords. It is a free Hanafuda that competes with more than 100 Sengoku warlords. The rules for Hanafuda are Koi-Koi. The screen is designed so that even people who have never played Koi-Koi can operate it intuitively, so they can learn it immediately. Whi