Wakochi was teaching Yuuzu how to be cute and how to do a Yuuzu version of her catchphrase and introduction, like saying "Yuuzuyuuzu" and "Yuuzu Beam" and "Yuzuchi Hoshi (star)"
>Yuuzu: Wakochi Hoshi belongs to Wakochan, so...
>Wakochi: Wakochi Hoshi...let's just forget that ever happened...