According to Koreaboo, Jisoo Blackpink and Seo In Guk - the main couple of the movie "Boyfriend On Demand" had an interview to promote the movie.
In the interview, both frankly shared their feelings about each other, especially when working together on set.
Speaking about Seo In Guk, Jisoo emphasized that the "chemical reaction" factor is the most important thing for romantic movies. Blackpink member said that her co-star helped her feel comfortable and always cared for and supported her wholeheartedly.

Jisoo revealed that the two often have exchanges before filming to unify the character's emotions in each dialogue. They even try to coordinate costumes to reflect the changes in the relationship between the two characters according to the story progression.
Because this is a romantic genre, harmony with co-stars is very important. Seo In Guk made everything comfortable and took good care of me, so I am always grateful and like filming," Jisoo revealed.
Not only that, Jisoo was particularly impressed with Seo In Guk's harmony with the crew. According to her, the male actor is friendly to everyone, so the studio atmosphere is always bustling with laughter, thereby contributing to creating many emotional scenes. Jisoo also said she learned a lot from Seo In Guk and believes that those who have worked with him have a common feeling.
In the opposite direction, Seo In Guk praised Jisoo when he said she possesses bright and lovely energy. The actor said that thanks to Jisoo, the studio is always happy and comfortable: "Jisoo has bright and lovely energy to help improve everyone's spirit. Thanks to that, the film is always filled with laughter. In addition, she is an actress with many ideas, so I have learned a lot".

Not only that, "Boyfriend on demand" also shows its wide coverage when it entered the Top 10 in 47 countries and territories, including South Korea, Taiwan (China), Mexico, India and Hong Kong (China).