Seven:
Amu
Ran
Miki
Su
Dia
Yoru
Aruto Tsukiyomi (Ikuto's father)
Seas:
Aruto Tsukiyomi, Ikuto's father, was Остаться в живых overseas.
Treasure:
Amu Hinamori is the treasure Ikuto has been searching for.
Ты would mostly get touched if Ты were an Amuto Фан like me. But even if Ты ship Tadamu или other Amu/Ikuto related couples, Ты could still get touched by Seven Seas Treasure's meaning.