I can't sleep Lyrics - Hikikomari Kyuuketsuki no Monmon

I can't sleep Lyrics - Hikikomari Kyuuketsuki no Monmon belongs to the anime Hikikomari Kyuuketsuki no Monmon, take a look at the argument:

In the depths of her three-year seclusion, the enigmatic vampire, Terakomari Gandesblood (lovingly referred to as Komari), awakens to a surprising twist of fate - she has been appointed as a Commander in the prestigious Mulnite Imperial Army! However, there's a formidable catch; her unit is comprised solely of rebellious miscreants who challenge authority with unwavering determination. While Komari hails from a lineage of powerful and revered vampires, her refusal to indulge in the crimson elixir has rendered her average - feeble, uncoordinated, and lacking in magical aptitude. As the odds stack against her, can she rely on the unwavering loyalty of her devoted maid, Vill, to navigate the treacherous path to triumph? Or will Komari bitterly regret the day she ventured beyond the sanctuary of her room?

Now that you know the argument, take a look to another songs of Hikikomari Kyuuketsuki no Monmon also called The Vexations of a Shut-In Vampire Princess | ひきこまり吸血姫の悶々