Woke up at 4am to write what I saw.
Xing elder typical brother
Mom - a chill lady who was also very health conscious due to her exisiting health conditions. Bad knee.
Younger sister - impulsive and bubbly.
Normal dad.
Xing always acted a little bitchy with his mom, calling her "belittling bitch" but he never meant it.
These are a family with super powers.
The children are the most gifted, xing able to manipulate technology and is super smart. Sister is able to partially travel through time. But it works a different and she is not great at it.
Story takes place in a moody subway station.
Xing and sister left school and reached the station to board a train back to home. But They saw their mom leaving in a train. They wanted to ask something not so important to her so they tried to approach her but the train took off. Younger sister decides to travel into the future, a branch in the reality in future where her mom exist, somewhere in close physical proximity so they both could ask this question and then after getting the information come back to the present and go on about their lives. Sister always uses her power like this, to do small tasks such as extracting simple information from the future.
It takes a dark turn when she is not able to find a branch as mentioned. Her eyes open with shock. No branch in future with their mom. What happens to her?!
Xing, possessing super intelligence, in a heart beat concludes that she dies shortly after they see the train leave. Sister is frozen as she realises that Xing is probably right. "Why is there no future without her?!" She mumbled.
So they decide to go to the past and talk to her one last time. Xing knows not to intensionally manipulate things in a branch for your benifit, so he was to let mom go. The very fabric of reality can witness a megatear if they attempt something as big as resurrecting someone from the dead. But they wanted to say a proper good bye.
So she reverses time (which she is not great at as she always goes forward because that's what she excels at) but can only do it in certain extent. Every time they travel back it's always a second late and the train leaves. At seemed like the order in the universe was trying to stop them.
They try it too many times and try to evade some rules in the subway station to do so, after many attempts the authorities get pissed off and have the digital security system to escort them out (this story happens in future so there are no actual human staff or security). Each time they try to go back a little further back in time, they make the security situation worse making it even harder to see mom.
Then Xing decides to use his powers. He goes to an ATM machine in subway and hacks it by extending his body into it by creating threads of data that penetrates the machine and hacks the entire system of the subway. He disables security and gets to know the exact train time schedule.
He then asks her to take them both to inside the train itself at the correct point in space time (possible now because Xing knows which train is where because he has all the schedule). Sister is now very exhausted by over using her powers for multiple jumps to the past.
Xings askes her one last time to take them to the train in which her mother was in, the train that took her to the station. A point in the past.
(Mother takes a train from a random place and arrives at the station, her kids see her and she boards another train to somewhere else)
Sister said it would be very difficult but she agreed. She held his hand and traveled back. Boom! They are in the train. Sister is bleeding from the nose and is a little dissy. Something isn't right.
Xing runs the entirety of the train screaming his mom name but to no avail. He won't let go of the last chance to see his mom so he uses his other super powers to create a tele kinetic blast. Forcing the train to stop. He had exhausted his hacking power by then. The train stops due to the power surge.
Sister trying the hold the fabrics of the reality together accidentally creates micro tears in space time which accidentally increased the effect of the blast Xing did. It was only supposed to stop the train but it got damaged and some passengers got phased out on the tracks.
Shocked they both rush out to the people. The ones sister saw were in pretty bad shape lying on the tracks with micro bleeds. But Xing saw a figure with a familiar purple scarf - he went closer and turned her around to see a smiling mom - it was his mom with barely a few scratches on her face. Both were smiling. Xing almost crying with happiness (but also sadness) to know that it would be the last moments with mother because in the future she eventually is lost.
Xing says out loud to sister "found the belittling bitch" while picking her up towards him. Sister seeing all this doesn't smile and looks shocked to death looking at Xing.
Mother smiled like she has never smiled before and came closer to xing as he lifted her but she phased through xings body as if she was a ghost. Which she indeed was!
Sister looked shocked because a minute ago she realised what happened. And what the tears in the space time really did. It was not the past!
Xing's eyes gazed on his mother's soul as it passes through his body into the afterlife. He looks at sister "it was me?!! I'm the one who kills my mother?!! HOW!!?!".
Sister mumbles "it is the future, Xing" barely able to contain her tears "I accidentally took us into the future" points at a clock next to the tracks "this is the future, not the past. I'm sorry! What have I done!"
Xing realises that he by mistake travels forward in time only to kill his mother. Which is why from the present they couldn't find a reality in future that had their mother (alive) in close physical proximity.
Sister screams "I was too weak, it was my fault!"
Xing simply looks on the tracks were his mother laid, shaking and spoke nothing.