Men do not make promises lightly, but once they do, they will use their lives to fulfill them.
Tangyu is even less likely to make promises lightly, as this is his promise to Xinyue. A woman who is willing to give so much for him moves him greatly, and he feels he should make such a promise to at least give her soul a place to belong, something to look forward to.
Since he likes her, there is no need to avoid it. If Xinyue is willing to let go of these feelings, then Tangyu naturally does not want to hurt her, but if she insists, he is willing to give her this promise.
Tangyu does not know how long his journey will be, nor when he will be able to eradicate that secret force. As long as that secret force exists, Tangyu can't settle down in peace.
In such circumstances, he doesn't want to accept any women, afraid of getting them involved, afraid he won't be able to take care of them.
Tangyu said, "Xinyue, where are your clothes? I'll fetch them so you can get dressed."
