[That's a surprise. He hadn't expected Akutagawa to want his company outside of work, when he's always so closed off to everyone. Of course, he could just be offering out of courtesy.]
are you sure? you shouldn't feel like you have to offer
[ Chuuya is correct to assume it's a courtesy offer. Akutagawa is never particularly social, but while he'd rather attend the tea ceremony alone, Chuuya has paid for him and a guest. It feels rude to waste the extra seat simply because his sister is out of town. ]
no subject
are you sure?
you shouldn't feel like you have to offer
no subject
I am sure.