This was like how Jiraiya could summon Gamabunta and his two brothers at will, while Mirai could only summon little toads at first. Even if he luckily managed to summon Gamabunta, he could only have him help as an elder brother.
Mirai looked the scroll over, then suddenly said, "But judging by this scroll's coordinates, if I wanted to, I could even summon you directly into the mortal world."
"Of course." Pluton snorted. "Those other old sages are probably dying to be summoned into the mortal world. It's just that we're too powerful, making it difficult for us to enter the mortal world on our own, while those who wish to summon us are too weak. Even among our own kind, there are very few who can summon us over directly."
Mirai gave a hum. "Then give me this scroll."
"No problem. If I want these things, I can have as many as I like." Pluton looked at Mirai's face. "But understand this: my subordinates aren't as obedient as the toads of Mount Myoboku. If the person you choose isn't strong enough, don't casually summon something too powerful. It's very easy to suffer backlash."
"I know that." Manda's figure immediately flashed through Mirai's mind. Manda's first proper appearance should have been during Orochimaru and Jiraiya's battle.
The moment he appeared, he had kept demanding that Orochimaru provide living human sacrifices for him to eat. And from Kabuto's perspective, it had once been said that if Manda discovered Orochimaru's hands could no longer move, backlash would be very likely.
Pluton's subordinates probably had personalities not much different from Manda's, right?
Mirai examined the scroll once more. Only after confirming there were no issues did he bite his thumb and smear the blood across it. In fact, such scrolls were very fair—summoning