NTR Gal - A gal who is kind to otaku gets cuckolded

Yumesaki Wakana is a blonde gal who is at the top of the school hierarchy.
As both otaku, I thought she and I were from opposite worlds.
But, by chance, she spoke to me in the classroom.
We happened to find out that we had the same hobbies,
The relationship between the two quickly becomes intimate.
Eventually, as they begin to harbor a faint, unrequited love,
Cracks begin to appear in their happy days at the hands of the other man...