Story : Shoma is excited to see Sachika's prototype Buche de Noel before Christmas. He also challenges himself to bake a cake for Sachika. After finishing the cake, Shoma receives a call about the appearance of a Granute. Shoma rushes to the scene and transforms into Gavv, but is lured away by Shita and Jeebh. Shita and Jeebh, enraged, attack Gavv...!