Ep. 9: The Sisters Craft a Unique Good Luck Charm for Keita's Studies
Aired on May 31, 2010

9
While Keita attempts to study, Ako and Riko compete to be the most helpful. During a private moment under the kotatsu, Riko and Keita engage in footplay until Ako discovers them. Seeking a way to aid his studies, the sisters research good luck charms and find one made from pubic hair. After deliberation, they pluck their own hairs to create the charm and give it to Keita, instructing him not to look inside. He takes the item to school, causing understandable embarrassment for the sisters.
Episodes
- Ep. 5 · Keita accidentally gropes Miharu, leading to suspicion, a library chase, and a locked storage room incident.
- Ep. 6 · Ako and Riko hide their adult shopping trip in Akihabara from Keita
- Ep. 7 · Keita's friends lure him to the pool with an erotic magazine, leading to a wet misunderstanding and strange dreams.
- Ep. 8 · Keita enjoys rare summer festival freedom amid rivalry between Ako and Riko
- Ep. 9 · The Sisters Craft a Unique Good Luck Charm for Keita's Studies
- Ep. 10 · Keita recovers from illness while twins compete for his affection during exam period
- Ep. 11 · Keita anxiously awaits exam results while friends face bad omens before discovering his success.
- Ep. 12 · Keita's Blazer Buttons Lead to Awkward Draw and Misunderstandings