Riri enters Yurigaoka Girls' Academy to become a Lily and protect people from the Huge, but finds her fellow Lilies more competitive and combative than she'd imagined; when a Huge specimen escapes, she must fight her first battle with no training.
Yuyu's strange attitude does not stop Riri from asking her for a favor related to the Schutzengel pledge. However, this triggers a conflict that entangles them as well as Kaede.
Riri faces her real test under Yuyu's supervision after having taken the Schutzengel pledge together. She must deal with the situation despite lacking in a significant aspect of her role.
Yuyu asks Riri to form a legion to keep her active, expecting her to fail; but when Riri starts actually recruiting members, Yuyu may be in for more than she bargained for.
Yuyu learns about Riri's birthday and struggles to decide on an appropriate gift. After taking suggestions from several others, she zeroes in on ramune.
Riri's newly-formed legion goes to watch an experienced legion fight to study teamwork; the Huge they're fighting, however, is more than it seems, and Riri and Yuyu's bond will be tested like never before.
Hikaru Akao
Voice
Akira Sekine
Aya Suzaki
Yūko Natsuyoshi
Mikako Izawa