Start the game by pushing 14.5.23
[Note: Open the menu first, then click ‘Ok’ otherwise the cursor won’t change.]
You’re in your room and found a LETTER. Look at the letter in your inventory to see it’s from the biology teacher. Use the door to go outside and walk to the left over the pavement to the level crossing. Cross the street and use the door of the school to go inside. Talk to the teacher and you’ll ask for the next exams.
Leave the school on the left and go to the tree on the right. Use the tree to get some LOVE. In your inventory use the love with the letter to create a love letter. Use the door of the school to go inside. You’ll give the love letter to the teacher and watch his reaction.
Game source: A copy of the game was found here on the internet.