Recommendations

Both feature time slip time travel where ML and FL can travel to each other's time, subtly influencing and changing events.

Short length dramas (film vs. short series) featuring a love story, time travel, and changing fate.
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Short length (film vs. short drama) love stories where the main couple are brought together by time travel, and changing past events.

Both are short (film vs. movie length) dramas featuring time travel, and changing past events for the future. Both have open, but satisfying endings.

Both are Chinese dramas with a love story based upon time travel and changing fate.
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Both are subtly romantic stories featuring unusual forms of time travel (time slip vs. time loop) where the FL and ML must work together to change fate.

Both are short dramas involving time travelers trying to save a life/lives. Both have unexpected twists.

Both dramas involve time travel and trying to change fate to prevent death(s). Both have a subtle romance between the main couple.

FL time travels and returns to her younger self and falls in love with the ML. Both FLs then try to undo a death (FL's mother vs. ML's). Both are school setting. The FL has met the ML in the past but doesn't know/remember it until much later after she time travels.

Different plot but a similar vibe and themes. One of the mains time travels, and attempts are made to prevent one or both of the couple's deaths. Both are slower paced love stories.

From starting to reaching out to the stars to once again standing at the beginning. A story that is simple yet complex. It draws you in and leave to stunned. The best example of how you can show a whole story in 9 episodes 15 min or even less. The pace is perfect we get to see Han Ji Woo lowering his walls to let in Kang Seo Joon. To Ji Woo's walls being back up in season 2.
A must watch that shows Korean BL one day will give other countries a run for their money.

It's not exactly an office romance, more of a teacher-student romance. But I promise it's not a weird one and doesn't involve pedophilia. This show is also lighthearted with interesting characters. Has the same FL, roboticly cute and also a short series. (I was reminded of this show because of the cosplaying scenes too.)

Its the same office romance concept involving a much more stiff FL. Except its shown in the guy's perspective and also the FL in this drama isn't exactly in a higher position or even older than the guy. But somehow their relationship still reminded me of this drama. Its a short series too, so its easy to watch.

The plots are not very similar, but if you're interested in post-censorship Chinese BLs that manage to make it very clear that the two boys are romantically involved, these two are at the top of the list. (Spoiler: They both have confession scenes and the boys agreeing to enter into a relationship with each other.) My Esports Genius Brother manages to be the most overt about this, but His Cat features family support of the boys' relationship. Unfortunately, another thing these titles have in common is poor English subtitles.

In both dramas :
- Pretend relationship
- Same Male lead
- Identical Twins Female Lead
- Identity Swap...