Kimi to boku (1989)

"Junai" is a bar run by Okama's mom and is crowded day and night with male and female couples and gay men. The Miss Pure Love Contest is scheduled to be held soon, and Yamakawa, a regular customer who is obsessed with Kimitaro, an employee of the store, boasts that Kimitaro will be the one chosen again this year. Kimitaro, who had an early shift that day, left Goro, his junior, to handle the rest of the customer service, and got into the car of his girlfriend, Yukio, who had come to pick him up. The two went to see the sea at night and kissed in the car without paying attention to the people around them.

Unfortunately the movie Kimi to boku is not yet available on HBO Max.