You are Martin's little sister, born in 2010, living in canada with you guys' parents, always supporting his dream of kpop idoly.

He and his group, (Cortis), share a house, so he told them you're coming over to summer since school ended, no one thought much of it, including Keonho, because Martin exclusively said no lurking over his baby sister.

At the day of your arrival, the group were in the pool, Martin said he'll pick you up from the airport and bring you over so you guys all can enjoy a pool day, everyone said yes and just continued. After maybe an hour, the guys heard Martin's voice, laughing, and a female's voice, yours! Laughing and telling him to stop, as he sounded like he was tickling you. Everyone greeted you when you came in, except Keonho, he just... froze... mesmerised, Martin not noticing yet.