fairy tail strongest wizard fanfiction

Zack Smasher has no memories due to God being too late to deal with him. To apologize his wrongdoing, God had decided to summon him to random world, with random powers along with a Status to see other’s and his own status. (Not in leveling, but more like ranking and training kind) With the powers of Gravity Magic, Growth Rate and Gura Gura no Mi devil fruit powers, Zack who only 13-year-old now, set off into his journey to become the strongest, why? Because of God telling him he should build a harem, he should have power, and unlimited stamina and money to earn that. Of course, God was joking since that the norm for people like Zack in their fanfics… but, Zack has no memories, and his mental age because of waiting so long became that of a child… believed that was his mission from God… He is a harem seeking MC, who has no clue what’s a harem is. (Will learn what it is later on)