Arcon's Blood?

I found Manji in map, and as expected, he was unwilling to give me any Arcon's Blood for free. He told me to go to the underground tunnel in the middle of the island, defeat 75 Zombie Mushroom, and gather up 40 Charm of the Undead first. I practically shivered at how coldly Manji treated me... I almost regret agreeing to help Maya, but no one else seems willing to...

Manji asked me to defeat Zombie Mushroom and gather Charm of the Undead in return for some Arcon's Blood.