I feel like a lot of people regressed or not regressed but woke up in an alternative universe? Since he said his dad died this time not his mom
Right, like it seems the ML is also from another universe bc he Remembers the MC in school and there are flashbacks of a classmate with dimples. Maybe it's sword art online lol they're stuck in a BL game
And i think i read a spoiler that said *spoiler warning ofc xd* that said his lill brother is also someone who regressed and its his lill sister from the other world so i feel like they all like died and woke up here as a 2nd chance? Its kinda weird tho that so many of them do remember some stuff
So... They regressed together?