Of course, Zhang Yanhang was aware that fusion to +7 wasn't exactly prone to failure, the real difficulty lay in how to collect the other seven Crimson Iron Heart +6 necklaces.
To fuse seven Crimson Iron Heart +6 necklaces, one would need to gather a total of four hundred and forty-eight Crimson Iron Heart necklaces. After deducting the Crimson Iron Heart +5 necklace around his neck, as well as the remaining Crimson Iron Heart +2, Crimson Iron Heart +1, and one regular Crimson Iron Heart necklace, he still needed to collect another four hundred and nine Crimson Iron Heart necklaces.
Unlike the Green Quality equipment of the Crimson Iron Ring, which was abundant and could easily be stocked, the Crimson Iron Heart Necklace, which was originally Blue Quality, could only be found in the drop treasure boxes of combat-oriented Crimson Iron Flying Ants and Crimson Iron Soldier Ants with the strength of First Tier Two Stars.
