Ep. 18: Kousei and Nagi perform at the Kurumigaoka Junior High culture festival
Aired on February 20, 2015

Kousei requests permission from Nagi to play at the Kurumigaoka Junior High culture festival, aiming to connect with Kaori through his music. The duo takes the stage, but Kousei abruptly shifts his playing style from a supportive role to an intense, rapid pace. This sudden change creates a sorrowful atmosphere that puts pressure on Nagi. Refusing to yield to Kousei's aggressive musical approach, Nagi struggles to maintain her own performance standards and resist the emotional weight of his playing during the live event.
Episodes
- Ep. 14 · Kousei and friends visit hospitalized Kaori while Tsubaki struggles with changing feelings
- Ep. 15 · Tsubaki struggles with her feelings as Kousei plans to leave home for music school
- Ep. 16 · Kousei teaches Nagi while Kaori unexpectedly returns to appoint him as Watari's substitute.
- Ep. 17 · Kousei struggles to visit Kaori while Nagi shares her school experiences
- Ep. 18 · Kousei and Nagi perform at the Kurumigaoka Junior High culture festival
- Ep. 19 · Kaori Chooses Surgery to Perform With Kousei After Hearing Their Duet
- Ep. 20 · Kousei retreats from hospital visit as Tsubaki notes his emotional hesitation
- Ep. 21 · Kousei retreats from music after witnessing Kaori's sudden health decline
- Ep. 22 · Kousei performs with soul to reach Kaori, supported by those around him