Misaka was a hikikomori who after getting fired from her third job lost the hope and determination to continue so she stayed at home playing Honkai Impact 3rd every single day at her computer and wasting money on her gacha pulls.
One day after noticing she was missing some food from the fridge she decided to order some food but her phone was at 0 forgetting to charge it the night before.
So she left her phone to charge and went to the market, white coming back she saw a child running toward the door she threw the shopping bags on the floor running towards the child pushing her and getting hit instead.
Falling unconscious blood dripping from her head as she slowly closed her eyes.