Akari can't believe her big brother Takuma suddenly has a wife from out of nowhere, and her mission to screen this new addition to the family results in some unexpected twists.
It will happen continuously 
if I spread this on my wrist.
‫سيحدث ذلك بشكل مستمر إن وضعتُ هذا على معصمي.
Wenn ich das auf meine Hand schmiere,
hört der Alarm nicht auf.
Se eu aplicar ao meu pulso,
o aviso continuará.
Если нанесу на запястье,
будет звучать постоянно.