Crisis Core: Final Fantasy VII/Wutai's Nemesis

From chapter 5 onwards, a guard is waiting for you in Loveless Street (Sector 8). Talk to him to start the Wutai's Nemesis quest.

Walkthrough
You will have to find the 6 Wutai Spies in order:
 * The first spy is just near where you got the quest, it's a man walking the Loveless Street. Talk to him several times before he reveals himself. It will unlock the mission.
 * The second spy is in Sector 5 - market, he is the guard patrolling the area, also talk to him several times. It will unlock the mission.
 * The third spy is disguised as a Shinra employee in the first floor of Shinra Tower, upstairs near the elevators. If he isn't there, try to go up and down each staircase. It will unlock the mission.
 * The fourth spy is disguised as a woman talking to a man near the east exit to Sector 1 of Sector 8 - fountain. It will unlock the mission.
 * The fifth spy is in the Exhibition Room, near the Rocket. It will unlock the mission.
 * The sixth and last spy is a child hidden in the Sector 6 park (near Sector 5 alley). It will unlock the mission.

Reward
You'll get Walnut Wood, which is an important item for the Side Quest ../Midgar Full of Flowers/.