The Girl with the Sanpaku Eyes, Volume 3, Paperback

At long last, the class trip is finally getting underway. Amane's in a
group together with her crush, Katou! Every hour together feels as short
as a second, and the distance between them is just as small....

The moment when something changes between them is close at hand.

About author(s):Shunsuke Sorato is an established web comic
author with a tremendous internet following. Throughout their three
series career, Sorato has focused on the romantic lives of high
schoolers, quite often with pink hairdos. The Girl with the Sanpaku Eyes
was originally serialized on Twitter and Pixiv to great fanfare, before
being serialized by SquareEnix.