If you're referring to "The Girl Who Leaps Through Time" (which has a similar vibe to what you're asking but doesn't exactly match "covertjapan"), Chinatsu is indeed a character, but details might be mixed up. Major Rock Movie 1999 Top [UPDATED]
However, given your keywords "covertjapan romancelikereal chinatsu suzume free," it seems there might be some confusion with another series or you're looking for something specific that involves romance, possibly an anime or manga series. Nalco 8514 Plus Msds Verified [FAST]