Beru's had a hard time defining herself. The reason: everyone meets Yuma first. Beru has made sure that everyone knows she's not too much like Yuma by using her own deck, not dueling much (but she's better than Yuma when she does), and running her own shop.
Current Concept:
See Arcs
Arc 3: CANCELED Beru wants to visit the Tron family to see how they're doing.
Arc 4: Numbers 96 discovers his connection to Atsukai and tries to control Beru with that connection.
Arc X: Beru is taken to the Barian World after a duel. Happens as part of Arc 2, but is counted separately
Arc Y: Shark and Beru fight and break up. Kaito comforts Beru and possibly becomes Beru's new boyfriend.