After being coaxed into crossdressing by his older sister, Hikaru Futaba ends up participating in a girls-only singing contest under a female disguise. Soon after his performance, Yuuto, Hikaru's friend, falls in love with his female alias. In addition, the class representative Sumitani-san also falls for him after discovering he crossdresses. How will this love-triangle play out?

Ao-ko Nagisa is a brand new teacher. She's posted to a tiny island on the edge of Japanese territory called Kotoko Island, 30 HOURS by boat from Tokyo. The island is so small there are only five students at the school. Everday becomes an adventure as Ao-ko gets to know her students, the other islanders and the island itself (including dolphins and other assorted wildlife.)