One cannot cease be amazed by the number of new keyboards coming out since 2010.
Esrille New Keyboard is designed by Shiki Okasaka, from his company Esrille. Home page at http://www.esrille.com/keyboard/
Esrille New Keyboard has a total of 76 keys.
The design of Esrille New Keyboard is much influenced by Japan's M-Type keyboard and TRON keyboard.
By default, the Esrille supports 3 English layouts: QWERTY, Dvorak, Colemak. 〔☛ Keyboard Layouts Fight! Dvorak, Colemak, Workman, NEO, Bépo, …〕
Esrille also supports several Japanese input layouts, including TRON ＆ M-type. 〔☛ Japan M-Type keyboard, TRON keyboard〕
In particular, the M-type ＆ TRON are interesting, because they are efficiency based, similar to the design principle of Dvorak, but for inputting Japanese. 〔☛ Keyboard Layouts Fight! Dvorak, Colemak, Workman, NEO, Bépo, …〕
M-type is designed mostly for using Romanji (English alphabets) to type Japanese, while TRON is typing Japanese kana (phonetic characters) directly.
See the official site for detail: http://www.esrille.com/keyboard/.
Esrille is among the many new keyboards invented after 2010. They have one feature in common: symmetric, many thumb keys, and mechanical keys. See: Heart ♥ Keyboard, Butterfly Keyboard, Cat 😸 Keyboard, Star Trek Keyboard ⌨