Ep. 4: Hostage Crisis Involves Kasahara and Inamine Amidst Bakushukai Demands
Aired on May 2, 2008

A pro-MBA group called the Bakushukai captures Kasahara and Inamine, prompting Ryusuke and Dojo to organize a rescue mission. Kasahara secretly signals her whereabouts by sending a hidden message and removing Inamine's prosthetic leg. During the ordeal, she tells Dojo she intends to remain in the LDF and surpass his abilities. Despite this resolve, her situation appears precarious when she receives a letter from her parents, who have announced plans to visit her at the base.
Episodes
- Ep. 1 · Iku Kasahara Joins Library Defense Force After Media Betterment Act Incident
- Ep. 2 · Kasahara and Tezuka overcome rivalry to protect banned books from special forces raid
- Ep. 3 · MBA forces target Odawara museum while Kasahara escorts Inamine to a ceremony.
- Ep. 4 · Hostage Crisis Involves Kasahara and Inamine Amidst Bakushukai Demands
- Ep. 5 · Kasahara hides her defense job from parents during a base tour
- Ep. 6 · Kasahara and Komaki transport the Book of Prophecy while evading Media Betterment Act troops
- Ep. 7 · Shibasaki faces library controversy while Kasahara suspects her relationship with Asahina
- Ep. 8 · Satoshi Tezuka pressures Kasahara and LDF while Dojo intervenes to stop his interference.