Ako decides to help Keita study in order to improve his passing rate, though both have a little trouble staying focused on the matter at hand. Ako shows Keita her chest in order to encourage him to study, but this ends up being all Keita can think about in class. Ako decides to try an alternative method, writing the notes on her body. Despite embarrassing himself in school whilst distracted, he fares better on the tests. However, when Keita likens a kiss from Ako as a penalty game, Ako gets mad and corners him, eventually making him do a wrong answer so he would have to take the penalty game. They hint at going further, but are stopped by Riko, who had been learning how to prepare food for Keita, though it ends up tasting bad. Despite this, Keita manages to improve his grade.
Ako decide ayudar Keita estudio con el fin de mejorar su oportunidad de pasar, aunque ambos tienen un poco de dificultad para mantener la concentración en el asunto en cuestión. Ako muestra Keita su pecho con el fin de animarle a estudiar, pero esto se vuelve contra su pecho cuando termina siendo todo Keita puede pensar en la clase.
케이타의 성적으로 아코, 리코 남매와 같은 고등학교에 진학할 확률은 50%
아코는 케이타의 가정교사가 되기를 자청한다.
