Mukai Naoya is in a relationship with Saki Saki, but another girl, Mizuse Nagisa, asks him out. He makes the unthinkable decision of asking them if they would be up for both dating him at the same time.
This whole arrangement was 
my imposition to begin with.
.كل هذا كان فكرتي من الأساس
Diese Dreiecksbeziehung habe
ohnehin ich euch aufgedrängt.
Avec ce ménage à trois,
je vous impose ce qui m’arrange.
Tutto questo è un'imposizione da parte mia.
Toda essa situação foi imposta por mim.