CRISIS CORE –FINAL FANTASY VII– REUNION

To do this, on the SOLDIER floor, bring the knocked out MAKO stone to the scientist and select "watch" (the first dialogue option) every time, until he says that we saved their laboratory from being closed, because they finally managed to do something useful (synthesis of matter from stones)

Talk to the researcher in the Materia Room in Chapter 2 or later. After that, complete missions 8-2-1 through 8-2-6, and talk to the researcher six times to give him the Mako Stones.