Level

The original recruit Angels characters are all at Level 1. Players need to spend a certain amount of ANGEL/GEM to level up your characters. The higher level, the more reward you receive from you characters.

Level is one of the most important attributes in-game, it will directly increase your character attributes and reward

Level	GEM Consumed	ANGEL Consumed	Rate of Failure
1 -> 2	50,000	7000	0%
2 -> 3	60,000	8000	0%
3 -> 4	120,000	16,000	0%
4 -> 5	300,000	28,000	0%
5 -> 6	450,000	35,000	0%
6 -> 7	600,000	50,000	0%
7 -> 8	800,000	70,000	0%
8 -> 9	1,000,000	100,000	0%

Please note: when you upgrade your high-level Angels character, there’s a possibility of failure. If you fail to upgrade, your Angels character will disappear permanently.