I have only watched the last episode of Todome no parallel? because that is the only episode that relates to the original series.. This drama is just a spin-off the original series Todome no kiss. the spin-off only shows what happens in the parallel worlds they were talking about in the original series.

I just needed some closure from the original series the ending to me was complete torture spoiler alert for anyone who has not seen the original ............. stop reading now ........................................................
okay so Otaro does not get the girl come on really he saved her in the first place after the whole emotional train ride at least with this last episode it gives fans of Otaro and Saiko hope that something may happen versus an end where he just leaves.