The Hachikuro crew decide to go to the mysterious amusement park + zoo - here Hagu uses all her senses to take in the giraffe she will later sketch. Mayama and Ayu talk of finding work and before Ayu can move onto a more sensitive topic, Mayama finds refuge with Shuuji, where they talk about him, and Rika's past. Shuuji talks of the greatness of Harada's existence and how they too, used to live together, becoming 3 when Rika joined them. He comments that it was as if both himself and Rika were founded by Harada, just like their past pets. However once Harada and Rika got married and began their own office, they were involved in a car accident in which Rika was driving causing her to blame herself. The scars on her body were from this accident, but the psychological effects were much greater.
It is revealed that after Harada's death, Shuuji was living with Rika as if to watch over her so she wouldn't follow Harada, but after a while, after feeling he could do nothing more for her, Harada and Rika separate and live apart. Yet, still worried for Rika, Shuuji decided to send in Mayama as a helper/watcher; one thing he did not plan however, was Mayama falling in love with Rika.

Mayama and Morita are energy drained from trying to complete their graduation thesis; while on the other hand, Yamada has already completed the legedary sized oosakatsuki, however, she was unable to find work, deciding to stay at uni as a researcher/assistant instead of going to her family business. While Morita tries to complete his thesis that night, Kaoru approaches him with a job offer which Morita takes up; thinking of Hagu as he does. With the completion of Mayama's thesis, he is offered a job at Fujiwara Designs, however, at that moment, Professor Dange comes in crying about Morita's disappearance and half complete self-macho statue... Morita comes back but is unable to hand it in on time.

As Mayama leaves Rika, she decides to work on a project with Asai-san, leaving Mayama at peace. As he takes Ayu home after drinking too much, she finally tells him how she feels, knowing rejection is the answer.