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ok so im pretty sure its a shoujo manga where its an arranged marriage between a straight couple and they think its going rlly badly, like awkward and not compatible. one of the chapters it was the wifes birthday and he gave her a necklace outta alota of presents and got excited when she said she liked it. another one they went to the aquarium but he cant handle crowds?

Okay so a popular scanlation group uses a panel from it, where it had the guy looking really deadpan and nonchalant. Pretty sure he had white hair?? And was really stupidly overpowered and was able to earn gold easily. The fl he was attached to, was reincarnated I think and has black hair