C99 Qi Da's Journey of Promotion

"'Ding! Friendly Reminder: Level 1 Biochemical Upgrade Crystal is sold for 1 million spiritual coin. After using it, it can help Level-1 Biochemical Guard to break through to Level-2 Biochemical Guard! '"

"'Ding! Friendly Reminder: Level 2 Biochemical Upgrade Crystal is priced at 10 million spiritual coins. After using it