[D]ic[E] [L]ess [TA]ble-talk System From the introduction: At first, in Japan, "paper and pencil RPG" is called as "Table talk RPG". The term of "Table talk RPG" used by SNE one of Japanese RPG designers group first. So, I call this system as "Diceless Table talk system". This Delta-System is a new approach to Role Playing Game system, replacing the random roll of dice with the player's decision of what need to be paid attention at the exact moment of combat and other tasks. Deciding combat and tasks become a bidding process between the player and the gamemaster (GM). This method requires a quick mid and fast thinking. Delta-System is a generic system and only an engine. This is based on the method of representation of PC's abilities and skills. But, Delta-System has no worlds now. So, the GM must provide his or her own world and scenarios to play this system.