The Story of a Tsundere Scandinavian Female Classmate Going Into Dere Mode as Soon as She’s Announced as My Fiancee

Toru Renjo, a high school student, was mediocre, amiable, and hated himself.
At the other end of the spectrum is his classmate Aino Luthi. Aino, a blonde blue-eyed girl, is the most beautiful girl in school and the daughter of a Finnish conglomerate. No matter how you look at it, she is a special existence. In contrast, Toru and Aino have little to do with each other.
However, by helping Aino not get injured, Toru has a little connection with her.
After a while … Toru becomes Aino’s fiancée. In order to escape from the marriage of convenience, Aino chose Toru as her fiancée.
However, Aino, who is really lonely, is gradually attracted to Toru’s kindness.
I should have been a fiancée only in name …