Hikikomari Kyuuketsuki no Monmon  

The Vexations of a Shut-In Vampire Princess, The Shut-In Vampire Princess Worries, Hikikomari the Vampire Countess Monmon, ひきこまり吸血姫の悶々, ひきこまり吸血姫の悶々 (小説), The Shut-in Vampire Princess' Worries

After spending three years as a shut-in, Terakomari Gandesblood, also known as Komari, awakens to discover that she has been appointed as a Commander in the Mulnite Imperial Army. However, her new unit consists solely of rebellious ruffians who disobey their superiors at any sign of weakness. Despite being from a lineage of powerful and prestigious vampires, Komari's refusal to drink blood has made her seem mediocre - small, clumsy, and inept in magic. Faced with overwhelming odds, will Komari be able to succeed with the help of her trusted maid Vill? Or will she regret ever leaving the safety of her room?

Hikikomari Kyuuketsuki no Monmon won an Excellence Award at the 11th GA Bunko awards.The series has been published in English as The Vexations of a Shut-In Vampire Princess by Yen Press under the Yen On imprint since April 19, 2022.