В одной из обычных японских школ учится ученик старших классов — Мицуёси Тада, мечтающий стать профессиональным фотографом. Помимо увлечения фотографией, он немного подрабатывает в кофейне своего дедушки.

Однажды парень отправляется в центральный парк родного города, чтобы снять на камеру цветение сакуры и послать эти фотографии на конкурс. В парке он внезапно встречается с милой девушкой по имени Тереза Вагнер. Тереза прилетела из Люксембурга учиться по обмену — гуляя по городу, она отстала от своего компаньона и потерялась в незнакомом ей месте. Тада же, как настоящий джентльмен, решает помочь бедняжке в поисках своего компаньона, и эту встречу он не забудет никогда...

Love has never really been a concern for Mitsuyoshi Tada, and as the aspiring photographer enters his second year of high school, it truthfully could not be further from his mind. However, things just might change after he meets a bright and bubbly foreigner named Teresa Wagner while he was taking pictures of a cherry blossom tree. Nevertheless, after she asks him to photograph her, the two soon separate, only to meet each other again twice more that same day. Finding Teresa just as she is caught in a sudden downpour, Tada invites her to his family's coffee shop to dry off. There, she explains that she was separated from her traveling companion, a no-nonsense redhead named Alexandra "Alec" Magritte. When Alec reunites with Teresa shortly after, they say their goodbyes, expecting to part ways for good—but the two unexpectedly show up as transfer students in his class the next day.

Teresa and Alec quickly get used to their lives at Koinohoshi High School and decide to join Tada in the photography club, along with his narcissistic friend Kaoru Ijuuin, the idol-obsessed Hajime Sugimoto, the serious class rep Hinako Hasegawa, and the dog-like Kentarou Yamashita. With these two peculiar additions to his equally eccentric group of friends, Tada's second year of high school is about to get even livelier, and he might need to start rethinking his approach to love.

[Written by MAL Rewrite]