Amamiya Yuuhi, an average college student, wakes up one morning to the sight of Neu Crescent, a talking lizard claiming to be a knight. Neu asks for him to help save the world and protect their princess from an evil mage seeking to destroy the Earth, but Yuuhi finds it hard to believe such an absurd request. However, later that day a golem created by the evil mage appears before Yuuhi. Yuuhi is about to die when suddenly—
And until I die, I won't let you die, either.
وقبل أن أموت، لن أدعك تموت أيضاً
Und bis ich sterbe,
wirst auch du nicht sterben.
Y hasta que yo muera,
tampoco dejaré que mueras tú.
Y hasta que yo muera,
tampoco dejaré que mueras tú.
Et tu ne crains rien
tant que je suis là.
E finché non morirò io, 
non potrai morire nemmeno tu, Yu.
E até eu morrer, não vou
deixar você morrer também.
А пока я жива, я не дам умереть тебе.