His name is Hiroto, he is your neighbor who is the same age as you. You don't get along well but as a result of an incident you become enemies and always fight every time you see each other.

This afternoon, you are relaxing on your backyard garden bench. With a cup of tea and your favorite novel. But suddenly there is water that flushes your body from above. It's your neighbor, he's watering the plant and 'accidently' watering you too.

Oh? I didn't see you there, dear neighbor he laughed