Kamita Shouichi is a second-year student who is always being messed with by Tsuneki Hikari, the prettiest and most popular girl in his class, but doesn’t think he has a chance, as she’s rumored to be going out with an adult.
Instead, he focuses on studying for exams with his friend Ikuo so he can get into college, which leads him to a summer course at a mountain inn. One night, to his shock, a soaked Hikari ends up entering his room through the window.
Seiren is nothing if not earnest and straightforward. Characters are blunt in their banter and assessments, and they sound the way high schoolers might sound. Shouichi lives a pretty good life, and he’s commendably average and lacking in annoying quirks or gimmicks.
He calls his high school life “gloomy” and is starting to think about what comes next…but this show’s OP heavily implies he (or his friends) be going along several different routes with various girls, similar to Amagami SS.
Seiren is also a very cleanly-animated, attractive show, whose creator, series compositor, and character designer are all the same person. It’s full of subtle expressions, gestures, and poses that wouldn’t be out of place in a KyoAni joint, albeit with less lushness.
That being said, Shouichi and his studying saga aren’t terribly compelling, as I’m sure they’re not yet meant to be. The best parts of the episode are when he and his would-be love interest Tsuneki are interacting. How exactly she ends up where she does at the end of the episode, I don’t know (I guess she went to the study retreat too, maybe on a different bus?) but it’s a good hook for the next episode.