- fourth installment
- a group of soldiers from the future arrive in Chrom’s timeline
- Lucina and her party were in the midst of a task when a certain incident occurred
- the gates to the underworld have opened
- includes 10 tracks:

1) Who… Are You?
2) Do You Promise to Not Give Up?
3) Searching Mission of Tiara
4) Are You Ready, Old Man?
5) That Hair Ornament Isn’t Right
6) We’re the Embarrassing Unarmed Troupe
7) Take the Bag, Even If The Contents Are Unknown
8) An Interesting Phenomenon
9 ) An Even Greater Treasure
10) I Hope to Meet Again