Koichi is asked out by another student in his grade named Yukako Yamagishi. At first, he couldn't hide his joy from being asked out, but quickly has second thoughts when she suddenly loses her temper with him. The next day, she knitted him a sweater, made him lunch, and did other things for him that makes Koichi start to wonder about her. Yukako obssession worsens, and she does the unthinkable.
I haven't the slightest idea 
what you're talking about.
لا أملك أدنى فكرة عمّا تتحدّثين عنه
Ich habe nicht die leiseste Ahnung,
wovon du sprichst.
No tengo ni la más mínima idea
de lo que hablas.
No tengo ni la más mínima idea
de lo que hablas.
Je ne comprends vraiment pas
ce que tu veux dire.
Guarda che non ho proprio idea
di cosa tu stia parlando...
Eu não faço a menor ideia
do que você está falando.