Ep. 4: Futaba watches ocean diving to boost motivation for pool training but faces difficulties
Aired on July 29, 2016

Futaba attends an ocean diving exercise intended to help her prepare for upcoming pool training sessions. Witnessing the activity serves to increase her motivation significantly. However, when she attempts to apply this drive to her actual pool practice, she encounters unexpected difficulties. The narrative focuses on her observation of the diving event and the subsequent challenges she faces while trying to translate that inspiration into her own training routine within the pool environment.
Episodes
- Ep. 1 · Ooki Futaba struggles to adjust after moving while meeting a lively girl by the sea
- Ep. 2 · Hikari begins her school day while Futaba experiences an unusual heart sensation
- Ep. 3 · Hikari attempts to ease Futaba's worries about her new life while Futaba begins her diving club trial
- Ep. 4 · Futaba watches ocean diving to boost motivation for pool training but faces difficulties
- Ep. 5 · Hikari and Futaba encounter Diving Club seniors in an unexpected manner
- Ep. 6 · Futaba Discovers an Unexpected Truth During Open Water Diver Certification Training
- Ep. 7 · Seasonal shifts impact the Diving Club's atmosphere, particularly for Katori Mato, who finds joy with friends
- Ep. 8 · Hidden Feelings and Unknown Things Revealed Through Alternate Perspectives