"Immortal, is this the reason you came here?"
Senju Chōsu was puzzled. He wasn't surprised that the Slug Sage had discovered he'd transplanted the cells, but he didn't understand why she'd suddenly come to him over it.
"This orb contains my Senjutsu Chakra. It can help you awaken and fuse with Little Hashirama's cells."
The Slug Sage spat out an orb and explained why she'd come.
"Why?"
Senju Chōsu caught the orb, confused.
"Kumogakure has occupied the entire Summoning Realm. I need you to help me take back Shikkotsu Forest."
The Slug Sage explained her goal. She hadn't planned on taking such a risk, but now that her home had been stolen, she had to do something. What's more, this experience had made her eager to grow stronger.
The orb was the only thing suitable for her. As an unusual being, she couldn't perfectly fuse with it and obtain all its power. She could only have a human fuse with it, then find a chance to devour them.
Most people wouldn't meet the requirements, but Senju Chōsu had good talent and had already transplanted Hashirama Senju's cells.
The transplant hadn't gone well, but that wasn't a problem. Besides, he was of the same clan as the First Hokage, so there was some compatibility.
All she needed to do was use her Senjutsu Chakra as a catalyst. The First Hokage had once cultivated her Senjutsu Chakra, so that would be enough to guide the fusion.
Creating a second First Hokage was impossible, but someone a little weaker would still be more than enough.
"I understand. I'll help you take back Shikkotsu Forest."
Senju Chōsu understood and made his promise.
The Senju clan had passed down the Contract Scroll for Katsuyu for generations. They were partners who could trust and rely on