beta
It's a black and white Shounen-Ai manga where both of the boys are childhood friends, I think? Their story has something to do with bridges, where the friends often hang out. My memory is really blurry, though.
One of the boys' grandpa has a human robot or android (if I remember correctly) which was supposed to be given to his grandson, in which his grandson can date?... I'm not sure if it's for that purpose, lolol. My mind is mixed up. At least, I believe the grandpa introduced a robot to his grandson.
It kinda reminds me of that English-speaking Olivia robot in Asobi Asobase. At least, the setting is similar, I believe. Just without the comedy.
I'm not sure, but the boy with the grandpa has a strict family, and I think they are wealthy. So, the grandpa might not approve the boys' relationship, if they were together.