I watched this anime and I forgot its name

I watched this anime a few years ago now I forgot its name and I only watched 2 eps of it. The male lead has a younger brother and they have brown hair i guess. In the first ep the male and the female leads will meet in the forest because the male lead's brother's hat gets stolen by a monkey. And the house owner would accidentaly see him naked because he forgot to lock the door. the female lead falls on top of him and they would accidently kiss and a few days later the male lead saw the female lead eating a flavoured food and remembers that the tastes like the flavour (from the kiss) please help. Its also a highschool anime