I'm very bad at drawing, but I got an idea about Item, Costume, and Mount.
Since I played this game and married with my girlfriend char, I realize that this game lacks of couple item, costume, and mount that a couple can use or share with each other. For example, we can make some mount that a couple can ride together (the seat can be next together or both of them can share a seat in a mount). Moreover, some emotions like hug or kiss can be created for couple to share their feeling.
Hope that Grand Fantasia will become more popular and last long ^^