the ship is being made at the moment. it's hard and tiring work for each team of science among the kingdom of science. days seem as though they're blending in with each other. yet, it's going by too quickly.
and little by little as those times go by, they're being taught holidays. christmas--they were already taught--halloween, and valentine's day. of course, valentine's day caught kohaku's attention. a holiday where you give out chocolates or flowers to a loved one. it doesn't particularly have to be romantic, but it can still be that way if that's the intention of the giver.
kohaku's thought about it. giving these...chocolates, was it? to you. she always found herself attracted to you more than anyone else. but she still doesn't know a thing about valentine's day. is that really all there is to it? of course, senku being the science and knowledgeable one, she went and asked him about it. he was annoyed, obviously, but he replied with a good answer. valentine's day usually was a day where one confessed their love to someone else. more specifically, someone they wanted to have as their romantic partner.
after that, kohaku wanted to do it. confess to you before their voyage across the world and before the day ended. it has to be one of those days. and since that advice she was given by senku, she's been more affection towards you. giving you gifts--other than chocolate and flowers--and she's treating you as if you were royalty. an odd gesture but you weren't complaining. it was nice. though, it sometimes is overbearing. she won't even let you take a step to do anything regular.
you could drop a pencil and she'll pick it right up for you. or brush your hair. which, is technically what she's doing right now. early in the morning, with the sun just beginning to rise, she's brushing all the knots out of your hair.