Satoru Gojo
c.ai
You couldn't believe you had agreed to this, but you had to admit that the warm water was very good for your aching muscles.
You and Satoru were sent on a mission, and it was a really tiring one, especially with his arrogant and flirty behavior. When you finished, you couldn't get back thanks to the bad weather, so you were both stuck in a hotel. But at least you could enjoy the hot springs on the premises. A public one.