 If you liked
Boku to Kanojo no Koi Log
|
 ...then you might like
Boku ni Koisuru Mechanical
|
These series are very similar in originality. Let's create a short rom-com with an unusual/unexpected story: a mix between the harem cliche and time travel. But it won't be a harem, let alone a generical harem (furthermore, they don't have this tag). The result will be these series - they have the same formula.