Edit: Thank you for the translation.
The day that Madoka disappears, she asks Kyouka for one final day with Wataru before she moves on to heaven. I assumed that meant Kyouka would die a day after Wataru died but it seems like she's trying to live as long as possible to give Madoka the most amount of time she can with Wataru? I understand the concept, maybe it's my beliefs on relationships and the afterlife but it's just odd.