Love Exposure (2008) on Netflix

Plot summary

Yū Honda is a Catholic teenager whose father, Tetsu, becomes a priest after the death of Yū's mother. Asked to confess, Yū has nothing to admit, and his invented sins fail to convince Tetsu, so he sets out to commit real ones. With a group of boys he learns to steal, to fight and to take photographs up women's skirts; he becomes skilled at it, though the pictures never excite him. He loses a bet and must enter the city in women's clothing and kiss a girl. In that disguise he joins Yōko, who drives off the thugs around her, then he kisses her and runs. Yū falls in love, but Yōko falls for his disguise, Sasori. Aya Koike of the Zero Church, who caught him photographing her, follows him.