Mizuto and Yume used to date, but now they've suddenly become stepsiblings. Both of them agree that they don't want to do anything that'd disappoint their newly remarried parents. However, neither of them can accept the other as being the eldest sibling in the relationship. So they both agree to settle the matter with a game. Whoever does something in conflict with what people might consider normal sibling behavior, loses. Making them the younger sibling.
Well, looks like I was worried over nothing!
!حسنًا، يبدو أنّني كنتُ قلقًا بلا سبب
Tja, Papa macht sich
gern mal zu viele Sorgen.
Parece que me preocupé en vano.
Parece que me preocupé en vano.
Il n’y avait pas de quoi
s’inquiéter.
Beh, a quanto pare mi stavo preoccupando per niente!
Bem, parece que eu
me preocupei à toa!
Эх, зря только волновался!