***A Collection of Hamano SIbling Stories - 4th installment***
Ayumu Hamano has exams coming up. Because of distraction she runs off to the library leaving Hikari Hamano alone and bored. Hiroki Uchi turned up at the Hamano Resident looking for her but finds Hikari instead. Without Ayumu, the two were bored and ended up going to the Aquarium together. Just how will the day turn out?