What to Do Here
You may feed your familiar treats. Each treat has a number of squares that determine how much of the stat meter will fill up and a fullness. At the same time, the familiarity level will rise up, providing bonuses as each heart becomes full.
Chocolate affects attack.
Flan affects defense.
Cake affects magical attack.
Sundae affects magical defense.
Pie affects accuracy.
Ice cream affects evasion.
You may also feed your familiar a gem (provided that it is compatible). Gems provide new moves to familiars.