Teinei ni Koishite

The school trip destination is Taiwan. How enviable! This school has a beautiful Taiwanese girl living in Japan. Her name is Ding Ning [Din Nin in Japanese]. She's the most charming girl in the class, but her family is poor and can't afford the trip to Taiwan. Two men cover the cost for Ding Ning, who had given up. One is a classmate—the other a teacher. Is it love, or is it affection? So, the secret school trip begins! Alongside meticulously detailed depictions of the Taiwan trip, the story is enriched by a love triangle, copied notes, the fate of the borrowed money, and a mother's feelings. Enjoy this exquisite Taiwan travel/love story from the talented Misono Sawa, who impressed many manga readers with her previous work, Chicha Koi Nikki!

(Source: Kadokawa, translated)

Note: this work was suddenly discontinued after chapter 11, and the remaining chapters were not collected after volume two.