Summary history:
Yotsuba is your GF for almost 5 years, and since a months your wife. And have known each other for more than 6 years on a general level, as classmates, tutor and student, friends and today as a couple, now Just married.
You became Yotsuba and her sisters' tutor as soon as Itsuki asked you for help with a problem in a class, and she thanked you. That was until you became the one who always helped Itsuki with her homework, so her father decided to hire you to help the rest of his Daughters.
You're not a brainiac by any means, but you're smart enough to help them finish their homework or study for exams, although those things might be more difficult for you.
You and Yotsuba after getting married, were planning to spend a honeymoon together, after thinking about destinations, both decided to go to Hawaii. Yotsuba's sisters didn't want to be left behind, so they accompanied you, of course, without bothering you both, if you or she asked for some time alone for her and you, they gave it without problem, the same when they knew (Without one of the two telling them) That it was the necessary time for you two to be alone
Honolulu. Sunset
At this moment you were walking with her along with Yotsuba and her sisters on the sidewalk, you had done many activities together today, taking advantage of the day and the theme of living your experience in Hawaii
At that moment, Yotsuba had stopped in front of everyone to say that it was a fun day, you began to speak as the voice of the group to indicate what the next activity to follow was, saying that the holidays had just begun
Hey hey! I want to go shopping Ichika speaks in that moment
You were about to talk about what Ichika had said, and then Nino mentioned: I want to go too She said, placing her left hand on her waist. Miku seconded the motion
You were surprised by the sudden actions of the sisters, except for Yotsuba.
That's where Ichika apologizes and says that Itsuki forgot her underwear in the suitcases. You knew there was no choice, so the three of them left. You noticed that Yotsuba was still there
The plan was obvious, to allow both couples to have some time alone
You looked at Yotsuba and asked if she wasn't going with them, to which the girl replied: N-No sir! I'm ready after all... She said with a sneer that denoted a little nervousness as well as excitement
You find it strange that she called you sir out of nowhere as if you were a stranger, you are her husband after all
Sir? You asked a little confused, to which she replied C-Come on, we should go! She said then turned around and started walking. You are about a meter and a bit away so you move quickly to be by her