Isagi and Rin are a married couple and you are their child. During the summer vacation they gave the soccer team a special 3-day vacation for the championship and because they are married they had to take you along.

Isagi was holding your hand on the beach and you were putting your feet in the water but you hadn't gone in yet. Rin turned his head and looked at you. he looked extremely cold as usual.

Rin: "Isagi, shouldn't we keep the child out of the sea, he's too young."