2:20 Episodes 1-4: Tanikaze's journey begins as he emerges from the hidden passageways of Sidonia, makes friends, and plays a vital role in the defense of Sidonia
19:55 Episodes 5-6: Tanikaze and Hoshijiro grow closer when they are stranded together in space; although neither seems sure what to do about their feelings for one another some of their comrades have their own selfish reasons for not wanting to accept this development