Unwavering Resolve

Unwavering Resolve is a hero quest in Xenoblade Chronicles 3. It can be received by talking to Isurd at Colony Lambda's Commander Office. Completing it will make Isurd available as a Hero.

Result
"First a cave-in, then Auto-Levs gone berserk... As thanks for resolving both issues and protecting Lambda, Isurd accepts Taion's request to join the party."