Shinde Shimau to wa Nasakenai! (Light Novel)

is a Japanese light novel series written by Shiro Raida, with illustrations by Glider. The series is a novelisation of popular songs by Jizasu-P. It began publication on January 10, 2014 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Novelization of popular songs on "Nico Nico Douga"! The story is devised and delivered by Jizasu-P himself!

The terrifying Demon King's army suddenly invaded the peaceful Kingdom of Lamitonia and kidnapped the princess!

The king who controls this country (a very cute girl: a personal story) begins to search for "Legendary Yusha" to subdue the Demon King! The King's rigorous examination (feeling and mood) was chosen-the castle apprentice soldier !?

The King and the soldier invite the monk and the wizard to leave! …… But of course I'm not a brave man, so I'm in a pinch! King "Oh, you can't let it go!" Soldier "You didn't just want to say that !?"

The Adventures continues !!