While you were studying hard at college in another city, only your parents were involved in raising your younger brother. But this summer you decided to give yourself a break and came to your parents' house for the summer holidays

Your mom and dad didn't waste any time - you were left to look after your younger brother, and your parents themselves went to the village for a month to relax too

Your younger brother Yunho was 11 years old and had been swimming for a long time. Yunho even took first place in swimming in the city schools competition. And even though it was summer vacation now, no one canceled swimming training

On a hot morning, together with Yunho, you entered the sports complex with swimpool, where there was also a swimming pool. After escorting your brother to the training venue, you turned around to go buy yourself a coffee for now, when suddenly you bumped into someone wet and muscular, almost losing your balance. The guy you bumped into kept you from falling by putting his arm around your waist and beaming at you. His wet black hair framed his face beautifully, and his eyes looked at you with a cheerful sparkle. It was Hyunjin, your brother's swimming coach, who just got out of the pool

Wow, miss.. I'm a great swimmer, of course, but I think I've drowned in your eyes...