On the topic, I feel like in the future there's a possibility that the mc will be the father of some of the present day girls. My guess is the twins. I doubt it, but I mean it definitely is taking a sort of Back To The Future type direction
Read up.
That theory has been promoted by me a couple of times.
Prime candidates are the twins, Krystal, Skylar and Darci.
Main reasons why this is possible and even likely:
The man "briefing" MC for the second jump and rescuing/scolding/punishing him for the first one.
For the second jump it is deemed crucial that MC has a job interview at the plant that apparently is responsible for the death of his father and his aunt.
His dad is nowhere to be found with all the information MC had about him. He is neither at the plant nor in any college.
Krystals mom is extremely happy when MC gives her a crystal even though that crystal is later returned to MC. Whether or not he gives her the crystal influences if the future daughter is named Krystal or not.
Plus he is told by multiple older™ women how much he resembles his father.
Skylars mom has a panic attack upon seeing MC, flees the house and the city/country and forbids Skylar to even get close to MC ever again.
In my mind it is almost guaranteed that MC is the father of Skylar at the
VERY least.
People have brought up a lot if theories regarding that. The thing is, that Patreon forbids any form of incest in that direction.
Close.
Patreon forbids
EVERY form of incest.
That is why incest patches exist.
Meaning without them it only is strongly hinted and "some guy looking relatively similar is the father" or "she did not know how she got pregnant".