The Chap 15 is both cute and sad. The other was freed, while the other was left behind.
Although I do feel happy for the other, I can't help but assume that the one left behind has feelings for his friend (freed), but decided to let it go for his happiness. ╥﹏╥
I don't know how many times i have read this masterpiece. Thank you, author-san and translator-san!ヾ(☆▽☆)