"I'm Being Proposed to by the Knight I Raised [All 7 Episodes + 10]"

I was heartbroken in the real world and brought to a different world by a suspicious older man as a "Tokibito"—a being who never ages. I met a boy named Virto and treated him like a younger brother, but when he grew up, he proposed to me. But Virto must be confusing "dependence" with "love," just like I did in the past. This is the first installment of the Tokibito series. Cocky shota × reserved older sister. There are some slightly (?) erotic parts. ★7/27 Made subtle age corrections due to consistency with other series and birthdays. ★I was also posting on Kakuyomu, but I have withdrawn. Sorry about that.