Sean Gilman’s review published on Letterboxd :
Sweet, harmless romantic comedy starring Laila Boonyasak (she played the younger sister in Last Life in the Universe) and Sukrit Wisetkaew (who seems very wholesome, like the puppy version of Andy Samberg). They play teachers on a remote houseboat, separated by a few years and connected by the eponymous diary. They learn lessons about teaching and fall in love. It's nice.