"No. There are safer places than that. The power of four different element's guardians and a warrior can create an empty space which can only be opened by the same people who create it."
"There is a place like that?" asked Minjoon, his eyes on the magic ball.
"Yes. That's why I'm here. Myungwoo, you can choose four guardians and a warrior for it."
Myungwoo is looking around at his friends before he nods.
"I think I'll choose Sungmi, Bonhwa, Minseong and me from the guardian's part, then Sikyung for the warrior. Doesn't that sound good?"
"Don't choose me," said Sungmi, "you know I'm getting weaker."
"So we can't choose you because you're weak?" asked Bonhwa, "you're the strongest among us."
"If something happens to the guards of space... Let's say, if they die," said Sungmi, ignoring Sikyung who just screamed when she heard the word 'die', "you can't open the space anymore. You need the guard's element stone to open it. For warriors, you need their energy. So choose the one who likely won't die easily."
"Sungmi, don't mention death that easily," complained Sikyung, "we won't die, right?"
"We might, Sikyung," said Myungwoo calmly, "but I'll protect everyone so no one will die. It means including you, Sungmi."
Sungmi is smiling, "I know you're capable of protecting everyone, Myungwoo. But again... it's better to not choose me. It's not only because I'm getting weak. Once the enemy knows we have one magic ball already, they likely will hunt us intensely. And they will think exactly the same as Myungwoo thinks: the most powerful guardians must be the space's guards."