I also think she might be FP5 I also thought of what her spirit board could be.
Ichiro
Rank:**
Character:
(White alt), Sakura Minion
Stage Imperial Theater
Reinforcements will appear
Enemies get occasionally stronger.
Sumire
Rank: *
Character:
(Purple alt)
Stage: Imperial Theater
Enemy starts with Reaper's Scythe.
Enemy keeps it's distance.
Maria
Rank: *
Character:
(Black Alt)
Stage: Imperial Theater
Items: Freezie, Ray Gun
Enemy starts with Staff
Floor is covered with Ice
Iris
Rank: *
Character:
(Orange and Blue striped alt)
Stage: Imperial Theater.
Enemy has a preference with using Throws.
Pokemon will occasionally appear(Bewear)
Kohran
Rank: **
Character:
(Purple alt)
Stage: Imperial Theater
Items: Bombs
Enemy starts with Super Scope
Kanna
Rank: **
Character:
(Fighter Uniform, Ninja Headband)
Stage: Imperial Theater
Enemy's punches are strong for a short period of time
Orihime
Rank: ***
Character:
(Black Alt)
Stage: Imperial Theater
Enemy has a preference towards Special Moves(Mainly Neutral B)
Enemy starts with Steel Diver
Reni
Rank: *
Character:
(Default)
Stage: Imperial Theater
Enemy has preference towards Side Smashes.
Erika
Rank: ****
Character:
(Brown Alt), Minion:
(White Alt)
Stage: Luminose City
Enemy starts with Ray Gun and Super Leaf
Reinforcements will appear
Enemies will occasionally get stronger
Gemini
Rank: ***
Character:
(Lip Wig, Wild West Outfit) x2
Stage: Gerudo Valley
Enemy starts with Beam Sword
Enemy gets stronger overtime.