Rin sangat menyukai kucing, kakaknya selalu membawa pulang satu kucing baru setiap habis bepergian, karena itulah dia punya sepasukan kucing yang selalu mengikutinya kemana-mana. Riki and Rin started dating after Rin made a surprising revelation to Riki while walking on the way back. Rin memiliki rasa takut yang parah terhadap orang asing, dia tak berani berbicara selain kepada member Little Busters yang lain.Suginami confessed to Riki that she likes him but assured him that he likes someone else, which made Riki think about who does he really like.Lennon brings them another mysterious letter telling them that they have one final task to do before "learning the secret of the world", which is to "volunteer themselves during homeroom". Riki and Rin later tell the rest of the Little Busters, who congratulate them, but Riki chases after Rin after she runs away embarrassed.
Riki has trouble trying tell Kyousuke about it the next day, but Kyousuke claims that he already knew about it. Later that day, Rin asks Riki to help her buy some cat food and on the way back, she suggests they start dating and Riki agrees after confirming that she likes him. Wondering what she meant, Rin's image come to Riki's mind, and upon learning what happened, Kyousuke reveals that a third-year student had also confessed to Rin, but he helped her decline him. Rin does her best as they show the assembly member around, and though her nerves are. Remembering the most recent letter from Lennon, Riki and Rin timidly raise their hands. When a prefectural assembly member comes to the school for an inspection, a call is issued for two volunteers from Rikis class to show him around the campus. Now in his second year of high school they still hang out, fight and live together, and enjoy. Watch Little Busters Refrain Episode 5 Online at Anime-Planet. He really enjoyed being together with them, and his grief gradually faded away. They took Riki out and played with him during his time of need.
What saved him was a group of four kids calling themselves the Little Busters. While thinking about what Yuiko said to him, Riki is approached by a girl named Suginami, who confesses her feelings for him, but claims that she knows he already likes someone else and flees. Riki was a child when his parents died, leaving him hopeless and depressed.