"Name… I think it's a meaningless name now."
"What do you mean?"
"I think they used a fake name back then… We got played this badly."
Hiro wasn't naive after going through floors. He learned a lot of adventurer life and how the world worked, so proper research was done before his family could join this party. He spoke with a lot of people and even got records of this party's missions.
Everything looked legit and Hiro was feeling glad that such powerful people were willing to take him in and help him get stronger.
Hiro also felt like too much research and waiting would displeasure his future teammates, so with all feelings mixed like that, Hiro and his family decided to try this party.