2015-2016: Grade 6 Adventures

2015-2016: Grade 6 Adventures' is the final series of the Elementary Arc of the MiMiKaKa Series.

Plot
2015-2016: Grade 6 Adventures Episode List

The kids are now Grade 6 students in MiMiKaKa Academy and are assigned to a big project, which is to act a play based on their pasts as friends and classmates. A new student, Takanami Nakaki, joins the group. The series uses marine and water based themes with maturity, changes in the character as they grow and the reaction of seperation as one of its motifs.

2007-2016

 * Otogawa Otokuchi (音川 おとくち) - Otokuchi is one of Hibiki's first friends.
 * Kurokawa Gakki (黑川 がき)/Moros (モロス) - another one of Hibiki's friends.

2008-2016

 * Juuniza Tetsuya (十二座 てつや)

2009-2016

 * Minazuki Kazuya (水無月 かずや)
 * Natsuki Masaru (夏木 まさる)

2012-2016

 * Kumomiya Kanata (雲宮 かなた)

2014-2016

 * Aihara Mamoru (藍原 まもる)
 * Amai Roku (天井 ろく)

2015-2016

 * Takanami Nakaki (立波 なかき)

2007-2016

 * Shirabe Hibiki (調辺 ひびき)
 * Hoshizora Kanade (星空 かなで)

2009-2016

 * Akizono Setsuna (秋園 せつな)

2010-2016

 * Madoka Akane (円 あかね)
 * Kenzaki Yuki (剣崎 ゆき)
 * Yotsuba Momoko (四葉 ももこ)
 * Hishikawa Usagi (菱川 うさぎ)/Angol Dysperya (アンゴル ディスペリア)

2011-2016

 * Aoki Hime (青木 ひめ)

2012-2016

 * Nijino Erika (虹野 えりか)

2013-2016

 * Aida Tsubomi (相田 つぼみ)/Heart (ハート)

2014-2016

 * Amanogawa Hoshi (天ノ川 ほし)
 * Kasugano Haruka (春日野 はるか)
 * Umino Minami (海野 みなみ)