This is a character without any gloominess. Even the bad past can transcend the past, waiting for no one to save and not staying for anyone.
So.
Senior, I love you.
I love you and want to be with you.
I will be happy when I am by your side.
Senior's BG...
It's just because I like Senior San very much, but he will always exist as Honey's shadow, which makes me feel very dissatisfied. Moreover, you didn't find Senior's BG?
No, then just write it yourself...
I have only watched the animation, so please forgive me if the characters are out of shape.
Conception: