Chapter 5: Mysidia: Sunioo, Nameless Ruins & Fina’s Memories

Which radar do you need to find Mysidia?

Follow Lid’s initial Mysidia detector objective aboard the Enterprise. Its story function is separate from the later hidden-treasure upgrades. You do not need to purchase the High-Power Generator or collect every radar component before you can find Mysidia.

Once in town, meet Sakura and use the available teleport stones to move between districts. The Sunioo request requires special medicine from northern Mysidia, not a stack of ordinary shop Potions. Complete the facility conversation before leaving for the village.

Snowfield rescue and the two ruins guardians

Defeat Slagworm on the snowy approach with Wind prepared; its Swallow warning can temporarily remove a party member. Deliver the medicine in Sunioo, complete Sakura’s scenes and head southwest to Nameless Ruins.

The ruins objective counts two separate guardians. Use Lightning magic on Iron Giant. Use Water or Ice on Liquid Flame and avoid Fire, which it absorbs. Physical counters and Liquid Flame’s Reflect require you to check both attack category and current defensive state. The Mysidia gatekeeper guide separates these conditions.

Complete the initial Tellus confrontation when the story interrupts it. It is not the same winnable encounter as the chapter’s closing fight.

Books and the memory gate are different requirements

Arcane Library’s five haunted books must each be fought. Merely reading their descriptions does not clear the counter. When all five are complete, use the teleporter and retrieve the tome from the Forbidden Text Wing.

The first visit to Fina’s Psyche has a deliberately sealed route. Follow its scenes, return through the book and complete Tower of Mysidia’s summit event. Reenter with Sakura’s memories afterward. Use the library checklist for the books and the two-visit route for the gate.

The second visit has real battles

Fina is unavailable, so place healing on someone who can act before advancing into the forest. Follow Malboro’s marked encounter and the memory-camp conversations, then return to the gate. When its physical locks are gone, finish Rain and Archwitch Fina’s conversation rather than searching for another key.

Follow the flowers on the battlefield to Dark Fina, then prepare Wind and both physical/magical options for Tellus. Finish the closing scenes at Sakura’s house before following the Gronoa destination. Victoria’s post-Sunioo quest and Jake’s personal investigation are optional detours.