Wait, I need to know what happens next with this shirt! Is it packed into that little bag? Does Goro take it with him?
forgive me for portraying Arasaka corp in such an empathic way, but this shirt, among the others Kou's belongings, was sent to Vik after her body was dealt with
SPOILER TO BIG DRAMA BIG IN JAPAN EVENTS
Goro gets it back later, during his second visit to Night City (~at 2082? I'm lost in my own timeline, sorry) Among other fascinating activities aka old bones hunting he'll visit Misty and Vik, and will find this shirt in the box with Kou's old stuff Vik was saving for years (yeah, this how gets "Case" too).
as I'm already HERE, here is also the point when Goro acquires her optics. Vik gives them to him, he used to have a spare pair of lenses just in case Kou would need a replacement. She really loved this model, uwu, was wearing them since her early twenties.
So after Goro tells Vik there could be a way to get Kou back, Vik finds them and asks Goro to give them back to her 'cus he doesn't want her to see the world through someone else's eyes