Eight year old Kouki falls into a drain while trying to impress Rin, causing Daikichi problems.; As a show of appreciation for caring for Kouki, Yukari invites Daikichi and Rin to accompany them to the city aquarium.; A peek into how the lives of the main characters have progressed since the first series finale.; How thirteen year old Kouki became involved with Akari.; An incident with six year old Rin killing ants in the back yard becomes a lesson in respecting life.; How Masako and Saionji became a couple.