How to get requiem 4 relic?

Could you please explain the process of acquiring the Requiem 4 relic in more detail? Is it through a specific quest or event in the game? Are there any prerequisites that need to be met before it can be obtained? Additionally, are there any tips or strategies that you could share to help make the process of acquiring the relic smoother and more efficient? It would be greatly appreciated if you could provide a comprehensive guide on how to go about getting this valuable item.