'Sigh!'
I took a sigh as weakness came over me; I had used the 'Second Boost' for less than three seconds, but I am still feeling quite tired and would need to rest for at least half an hour to went back to my peak condition.
At my current state, I could use the 'Second Boost' for about a minute without getting any serious side effects. If I used it for more than a minute, then it would take me months to heal from that damage, and if I used it for two minutes, then I would cause irreversible damage to myself.
I looked at the bodies of Ghoul, which are turning to smoke; the higher the strength of Ghoul, the greater time they took to became smoke.
For a normal person, there is no difference, and he will see them turning to smoke instantly, but these Green Kings have taken nearly a second to turn into the smoke.
