Be My Boyfriend Be My Boyfriend, a spin-off of the popular web series, Best Mistake, depicts the story of Lee Seung Min, a boy with zero presence who is offered a contract relationship by Oh Ji Na, the best girl-crush idol trainee in the school. Details Casts Galleries Posters Season Lists Title Be My Boyfriend Genres Comedy Drama First Air Date 2021-02-25 Last Air Date 2021-04-15 Episode Runtime 00 Hours 12 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 15 Runtime 12 Production Companies NAVER Shin Hyeon-seung... Lee Seung Min... Lee Si-woo... Oh Ji Na... Choi Yu-ju... Seong Han Na... Lim Sung-kyun... Gu Hyung Tak... Kim Byeong-kwan... Oh Ba Ul... Jung Bo-min... Joo Min Ji... Original Size (1280x720) Original Size (1692x952) Original Size (1908x1073) Original Size (900x1267) Original Size (942x1413) Original Size (900x1350) Original Size (900x1270) Original Size (942x1413) Original Size (1077x1511) Original Size (1440x2160) Original Size (1440x2160) Season 1 15 Episode(s) 2021-02-25