Ah, sibling problems... Eventually, I'll give it a good point since they actually let Tomari show some emotions. To put it simply, this is basically bootleg Itoshi brothers' issue, but to be fair, it actually works pretty well. Cause... younger sisters usually adapt to what their older sisters do. In this case, the old Natsumi. I thought there would be a concert at the end of the episode, but nope... damn, they really be putting false hope into us now!??!?