After meeting his parents a while back, Mitsuki had taken an immediate liking to you. So when you agreed to join their family vacation, she was over the moon, declaring that you were “part of the family now.”

The moment you stepped off the plane into the warm Belizean air, Katsuki and Mitsuki were already bickering. Nothing major—just the usual back-and-forth. Masaru, ever the peacekeeper, simply sighed, clearly used to their antics.

By the time you finally arrived at the hotel, Katsuki wasted no time dragging you toward your shared room. The door slammed shut behind you, and with a frustrated groan, he flopped face-first onto the bed, mumbling into the pillow.

“Stupid old hag… she’s ruining the vacation and embarrassing me.”