Strike the Blood: Valkyria no Oukoku-hen

Kojou and Yukina are on their way to school as usual when they find La Folia being chased by someone. Yukina crosses blades with the enormous man who's pursuing her, but before the fight can escalate further, La Folia makes a shocking comment: "Father, this is the Fourth Progenitor, Akatsuki Kojou my first!" La Folia's father, Lucas, had told her to decide who she wished to marry, so she declares that Kojou is her choice. Lucas refuses to accept this, but then La Folia's mother, Polifonia, invites Kojou and Yukina to a party so they can all talk in more detail. When they arrive at the party, they discover that Asagi, Yaze, Nagisa, and Sayaka have been invited as well, due to their connections with Kojou. What sort of heated battle is about to break out between the many girls in Kojou's life?!(Source: Crunchyroll)

Strike the Blood, Anime Review

Strike the Blood II - Anime - AniDB

STRIKE THE BLOOD OVA : VALKYRIA NO OUKOKU - HEN, STRIKE THE BLOOD OVA : VALKYRIA NO OUKOKU - HEN, By Okano Tetsuya

La Folia and Yukina kidnapped by Movi-Viento on DeviantArt

Anime Blu-Ray Unopened Strike the Blood Valkyria no Oukoku Hen Complete 2 Volume set

Strike the Blood: Valkyria no Oukoku-hen – OVA – 01, 02 – Random Curiosity

Strike the Blood: Valkyria no Oukoku-hen – OVA – 01, 02 – Random Curiosity

Strike the Blood (TV Series 2013–2022) - Episode list - IMDb

Trine Halden, Legends of the Multi Universe Wiki

Strike the Blood OVA Bonus Clear Posters Previewed - Haruhichan

ARS NOVA ANIMES: Strike the Blood II - Second - Blu-Ray (Arrumado)

Strike the Blood: Valkyria no Oukoku-hen – OVA – 01, 02 – Random Curiosity

Strike the Blood: Valkyria no Oukoku-hen – OVA – 01, 02 – Random Curiosity

imoto yuki strike the blood strike the blood: valkyria no oukoku-hen akatsuki kojou himeragi yukina kanase kanon la folia rihavein dress gun seifuku weapon, #336557