Chapter 89: Ch.89 Preparation
Uchiha Shinji was unaware that Deidara's theft of White Zetsu cells had already been discovered by Zetsu and Obito, and even more unaware that Obito had blamed Itachi for it.
According to the agreement made in the 'Jikibi Space,' Deidara did not personally handle the exchange but used a clay spider to covertly deliver the stolen White Zetsu cells to a forest.
For this reason, when Deidara flew away from the town on his clay bird, Obito and Zetsu hurriedly followed him, leaving no time to search the town.
...
Three days later.
On a quiet night, Coalball used his Shadow Release to become a shadow, cautiously sneaking into the forest. He located the clay spider left by Deidara and retrieved the White Zetsu cells stored in a small culture dish.
...
Inside the apartment.
Timing it right, Uchiha Shinji bit his finger, formed hand seals, and performed Summoning Jutsu.
Poof.
In a puff of white smoke, Coalball appeared.