In a vast frozen waste, twins Sou and Seiji have been fighting each other for millennia. Ms. Aki says that to change the world, they need the twins' "Reverse" power, and Nagara and Mizuho come to assist. Yamabiko questions Sakura, one of Mizuho's cats.
The goal is to encounter
a single predetermined tick
الهدف منها هو إيجاد قرادة 
 واحدة محددة مسبقًا
Eine Dating Sim, deren Ziel ist, dass man
unter Billionen Klassenkameradinnen
El objetivo es encontrar
una garrapata específica
Il faut trouver et séduire
la tique qui t’est destinée
O objetivo é encontrar um carrapato
entre trilhões de colegas de classe,