Ekikoi: Ekiin no Tame no Wakai Misufouruzu

After a fateful encounter in the station platform, Botan, an innocent high school girl falls in love with Koganei, the handsome station attendant who helped her. Koganei was a man adored by everyone in the station since he is very polite and kind. But, it seems like the Koganei she likes has another face... Be careful, Botan! Don't get fooled by his appearance!

(Source: Manga Club)