Resized to 78% of original (view original)
Artist's commentary
It's summer.
【Yuzuki Yukari?】Summer Electrolysis, Bookshelf【Original Sssongg】http://nico.ms/sm35378728
Translated Mojibake (shift_jis -> utf-8):
夏だ。【結月ゆかり?】夏電解、書架【オriぢなるがっっきょっく http://nico.ms/sm35378728
(書架 (shoka, bookshelf) and 初夏 (shoka, the beginning of summer) are homonyms.)