Nonary Game rules

Each person will given a unique number within the range 1 to 9. 

Here is the list of the 9 persons nicknames and their number.

[1] ACE

[2] SNAKE

[3] SANTA

[4] CLOVER

[5] JUNPEI (The main character)

[6] JUNE

[7] SEVEN

[8] LOTUS

[9] ??? (Died before he has a nickname)

I won't refer them with their names from now on, i'll refer them from their number.

The 9 persons is abducted and placed in a sinking ship that will sink in 9 hours. The goal of the game is to survive and find the exit. In the ship there are unique numbered doors within the range 1 to 9.

These numbered doors is locked. To open the door the 9 persons have to use register their numbers to open the doors. These are the criteria to open the doors :

1. The registered number's digital root must equal with the number on the door (i will explain about digital root later)

2. Only 3-5 persons can go through 1 door.

3. All person that is registered to the door must go through the door.

4. A person that is not registered to the door can't go through the door.

So basically 3-5 persons register their number until the number has been satisfied and they should go though the door, no leaving a registered person and also no adding another non-registered person.

The door will open for 9 seconds. Anyone who disobey the rule will have a bomb detonates on their stomach at 81 seconds, which mean dead.

The exit is a 9 numbered door. ( a numbered door with number 9)