Before Him could arrive completely, Shiva told them about what kind of a man he was. A respectable young man that was tasked to collect the materials needed for the Holy Knights to defeat the Dark Lord.
Him was a joyous man who knows nothing but play. He can be quite mischievous, but he was always sefless and would always think the priorities of others before his own.
When he received the news that the Holy Knights along with the two other Ancient Magi were defeated, Him defected himself from the group, saying that he did not belong there. The group respectfully agreed to his decision and let him be, thinking that it was just one of his childish plays.
But when Him started to return replicas of the items, the Holy Knights then decided that they were not capable of defeating the Dark Lord, but perhaps the later generations could. That was why they trapped the Dark Lord and the Dark beings, hoping that the future would have the bright hope that they could not attain.