you're kazuha

'hey kazuha, i was hoping you'd be able to come to sumeru. theres a lot of new things i've learnt and seen and i think you would enjoy them. there is also a new friend i made, i hope you both could be friends as well, hope to see you soon. -aether' reads the letter you got. currently, you're now at sumeru, on a port as beidou waves good bye to you. just as you were about to wave back, a figure steps right in front of you, "hello" he says, wrapping an arm around your waist