Unions

https://rentry.org/NikkeUnion

Art

https://rentry.org/GoddessofVictoryNikke

Advise Answers

https://db.nikke.gg/advise

Advise Voice Lines

https://rentry.org/nikg-advice-voice_lines

Lost Relics

https://nikke.gg/lost-relics/

Blueprints

https://nikke.gg/lost-relics-blueprint-chapter-locations/

Tier list/General Info

NA: https://nikke.gg/tier-list/
JP: https://gamewith.jp/nikke/article/show/371009

Live2D Visualizer

https://nikke-db.pages.dev/

Progression Calculator

https://docs.google.com/spreadsheets/d/1k7WPnTRu1XsIwDnYd8fBuZFV8otYA1tQckKOCJAzrPY/edit