Ep. 6: The Hero Club members face mysterious health issues after their battle with the Vertex.
Following their fight against the Vertex, the girls undergo hospital checkups and discover various physical ailments. Fū has lost vision in her left eye, Itsuki has lost her voice, Yūna has lost her sense of taste, and Mimori has gone deaf in her left ear. While the first two assume these are temporary battle fatigue, Mimori suspects they are side effects of the Mankai form and contacts Fū. Meanwhile, Karin, who avoided using the Mankai form and remains unaffected, isolates herself because she feels useless now that the Vertex are gone. Yūna finds Karin and reassures her that the Hero Club will continue regardless of combat. Touched by this support, Karin persuades Taisha to allow her to remain at Sanshu Middle School until graduation, and the group makes plans for the upcoming summer break.
Episodes
- Ep. 2 · Fuu and Yuuna defeat a regenerating Vertex while Mimori awakens her hero form to protect Yuuna.
- Ep. 3 · Karin Miyoshi defeats the fifth Vertex and joins the Hero Club after a surprise birthday party.
- Ep. 4 · Hero Club supports Itsuki's singing test while Fū faces Vertex forestization
- Ep. 5 · The girls battle seven Vertexes, facing traps and merged forms while protecting Shinju.
- Ep. 6 · The Hero Club members face mysterious health issues after their battle with the Vertex.
- Ep. 7 · Taisha rewards the girls with a hot spring trip, but Fū discovers new threats await.
- Ep. 8 · Yuna and Mimori learn the dark truth behind the Hero System from Sonoko Nogi.
- Ep. 9 · Fū learns the truth about her fairies and her friend's permanent condition
- Ep. 10 · Mimori confronts the Shinju's truth and unleashes Vertexes to end the cycle of suffering.