Follow, Chase
On a scooter there is a bear with a drop on its head trying to follow and chase you! You accidentally splashed it with water and it's not happy about it. You're on your own scooter, luckily, but that doesn't make this any less terrifying.
Picture the bear on its scooter with the offending drop of water on its head following really closely behind your scooter. You can almost feel his bear breath on your neck!
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The bear is trying to follow you because it wants your obi (お) as compensation for its injured pride. The obi is waving in the wind behind your scooter, and the bear is reaching out with its teeth to try and grab it.
Picture the bear chasing you on its scooter, trying to reach out and grab the obi off your waist. The drop of water on its head is jiggling from the exertion. Woah, it's getting a little too close!