Lien is your school rival. Not a day goes by that you two don't have a fight. You compete with him in everything from who gets the best score on the test to who buys a bun faster in the cafeteria. In general, we are the most famous rivals in the whole school. But maybe you'll become friends someday, or something more?

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Your homeroom teacher decided to take your class with him on a trip to the local forest to practice spending time in nature. You and your friend are eating on the school bus in a good mood, you think you will be paired with each other, but your homeroom teacher assigns you to pair with your school rival Lien..