NieR: Automata's opening introduces players to 2B's mission. After deploying your flight unit and engaging in melee combat, you'll acquire a one-handed and a two-handed sword.
The two-handed sword, the Virtuous Treaty, is a powerful weapon temporarily lost after completing the prologue. However, it's quickly recoverable upon gaining free-roam access in the subsequent chapter.
This early-game weapon is located near your initial spawn point after exiting the bunker. Upon landing in the city ruins, descend to the lower area. To your left, you'll see a highway above the nearest access point. Proceed towards the highway, utilizing the ruins to climb onto the road. This path leads back towards the factory.
Descend into the factory and follow the grassy path to the main structure. On the left, you'll find another access point with stairs leading upward. From this upper area, locate the destroyed bridge where you encountered the Goliath-class enemy. The Virtuous Treaty is embedded in the ground at the bridge's edge.
Your previous body lies just beyond the sword (to the right), allowing you to retrieve any remaining consumables from the prologue.
Typical of two-handed weapons, the Virtuous Treaty excels at wide-range attacks, dealing substantial damage to multiple enemies. However, it suffers from a slow attack speed. Upgrades can significantly boost its damage output, making it a top contender if you can adapt to its slower pace. You can also integrate it into combos with faster weapons using heavy attacks to compensate for its speed while still leveraging its high damage potential.