Ep. 9: The group engages in special training activities while visiting the theme park

Episodes
- Ep. 5 · The protagonist expresses that he loves his little sister more than anything else in the world
- Ep. 6 · The culture festival at Hakuou Girl's School takes place
- Ep. 7 · My sister and I participate in a doujinshi contest that we must not lose
- Ep. 8 · The time when I acquired a new younger sister
- Ep. 9 · The group engages in special training activities while visiting the theme park
- Ep. 10 · It is acceptable for me to act cute toward my younger sisters
- Ep. 11 · My Little Sister and I in a Virtual World, Part 1