You can control LUC by equip on Soul Transfer.

Luck is roughly indicated on the status screen in five stages: Luck: Despair ~ Fortunate.

Luck and number of LUC

Equipment Luc bonus and watch change of LUC on status.
ex:)

• naked Character, LUC:Furtunate
  (LUC = not less than 80, Because Minimum of Fortunate is 80.)
  
  
• Luc:Lucky when equipment LUC bonus -3
  (LUC = no more than 82, Because Maximum of Lucky:79 - Equipment bonus total:-3)
  
  
• Luck: Lucky when add equipment that have bonus LUC +1
  LUC = no more than 81, Because Maximum of Lucky:79 - Equipment bonus total:-2.
  
  
• Luck:Fortunate when add equipment that have bonus LUC +1
  (LUC = 80, Because Maximum of Lucky:79 - Equip bonus total:-1)

Character's Luck is change, when transfer soul.
The following is Fomula.

after ST LUC = X + after ST adjustment

• X: A - Lucky Number adjustment
  IF X < 0 then X = X +100, IF X > 99 then X = X - 100
  
  
• A(Min 0, Max,99): Naked LUC + Equipment LUC Bonus total + monnside before ST(+30) + Lucky star before ST(-25)
  
  
• Lucky Number adjustment: 36 - (Lucky Number/10 round away from zero)
  
  
• after ST adjustment: monnside = -30, Lucky star = +25

ex:)

• Character before ST, Lucky number: 16, naked LUC: 67
  monnside, Lucky star
  equipment LUC+10 and LUC-150
  
• Character after ST
  moonside, Lucky star
  LUC = 61
  
  
• A: naked LUC67 + equipment bonus total-140 + moonside before ST+30 Lucky star before ST-25
  = -68 but 0, Because applied Minimum.
  
• Lucky Number adjustment: 36 - Luck Number/10
  = 34 Because Round down to the nearest decimal
  
• X: A0 - Lucky Number adjustment34
  = -34 but 66, Because add 100.
  
• after ST adjustment: moonside-30, Lucky star+25
  = -5
  
  
• LUC after ST = X:+66 + after ST adjustment:-5
  = 61

Some Nature have equipment LUC adjastment.
You can control LUC simply, when Nature have no LUC bonus.
Brave and so on is no LUC Bonus.
You can use item:book to change Nature.

moonside LUC-30 and Lucky Star+25 behave like equipment bonus.

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