Ina usually plays the Straight Man role
Ina is soft-spoken, sociable, and easygoing
Ina is engaged in popular culture with diverse tastes such as mecha anime, pop rock, FPS games, etc.
Ina is loving and aware of other's feelings, capable of observing and talking about others in depth
Lulu is unflappable
Lulu has a calm, soothing voice
Lulu has inhuman endurance
Lulu will insist that she is just an ordinary human
Lulu plays infamously difficult games
Lulu is very soft-spoken and speaks politely