<h4>Chapter -1: A.Chapter 10: Tower detail</h4>


    - There are two types of towers


    1. Ranking Tower.


    - There are only 9 floors.


    2. Dungeon Tower.


    - There are unknown number of floors.


    - No one know how many floors exists.


    ....


    - Each tower has the same system, ''Tower System''.


    1. Ranking Tower


    [Tower System]


    [Wee to the tower''s first floor, newbies]


    [Choose difficulty type: 1st star, 2nd star, 3rd star, 4th star, and 5th star]


    1st star: 10 F+ monsters


    - Survive for 10 minutes in an enclosed space.


    2nd star: 50 F+ monsters


    - Survive for 30 minutes in an enclosed space.


    3rd star: 100 F+ monsters


    - Survive for 60 minutes in an enclosed space.


    4th star: 150 F+ monsters


    - Survive for 100 minutes in an enclosed space.


    5th star: 150 F+ and 50 E- monsters


    - Survive for 150 minutes in an enclosed space.


    =There are 9 floors on the ranking tower and from 2nd floor, your reward will be multiplied, and your name also started to imprint on the ranking tower ording to your grade.


    = You can earn the points for killing the monster in the tower


    1. F: 10


    2. E: 20


    3. D: 30


    4. C: 40


    5. B: 50


    6. A: 70


    7. S: 100


    8. SS: 150


    9. SSS: 300