Yuki has become a bit more optimistic, thanks to Hikari and Machi. She's learned to trust Tetsuo a bit more since what happened last time, and has decided to tell her what troubles her about her own nature as a snow woman. It began shortly after she moved to a new city to start high school, when she was taking a bath one day and a shard of ice suddenly appeared in the hot water. It made her worry about what would happen if the cold air she generated were ever to be directed at a person, which led to her decision to avoid contact with others.
In order to prove my theory, I had to 
make you as nervous as possible.
بهدف إثبات نظريّتي، كان عليّ 
.أن أجعلك تتوتّرين بقدر الإمكان
Um meine Theorie zu untermauern,
wollte ich dich unbedingt nervös machen.
Debía sustanciar mi teoría,
así que tenía que ponerte nerviosa.
Debía sustanciar mi teoría,
así que tenía que ponerte nerviosa.
Pour étayer ma théorie,
je t’ai placée en situation de stress.
Per confermare la mia teoria,
dovevo renderti il più possibile nervosa.
Para pôr a minha teoria em xeque,
Чтобы доказать это, мне нужно было заставить
тебя как можно сильнее нервничать.