Ch.1: In need of money, Kouta took a job as a pet sitter. Instead of a cute puppy, Kouta finds out he'll be petsitting famous writer Kyousuke, while he wears dog ears and a tail
Ch.3: Science student Oosado is studying genes and his current subject is Tojo, whose pheromones attract all mammals. However, Oosado hates Tojo for being able to tame his massive cat Goro
Pg.2-72: Igarashi's rambunctious bull terrier Buru often gets him into trouble by humping people's other dogs and biting people. As a result, Igarashi often ends up having sex with men as compensation for Buru's mischief
Ch.5: Yuuki comes home to find a man claiming to be his dead dog Tarou at his door. No matter how much Yuuki demands "Tarou" leave him alone, he continues to insist he really is Tarou
Ch.1: After falling asleep on the train, a vet gets pick-pocketed by a kid. A few days later, they meet again, when the kid comes to his office with an injured stray cat. Even though the boy won't come inside, he keeps dropping by the clinic
Ch.1-2: After an attractive boy, Ran, ran into Kagami while running away from a club he manages, Kagami decided to take him for himself. However, Ran has a connection to Kagami that Kagami hasn't realized
Ch.4: Cat lover Tora's convinced he's an S, but his lover proves otherwise
Ch.2: Kouda could never get along with his coworker Tanisaka, until he found out about Tanisaka's dog Moko. Now, Kouda keeps invading Tanisaka's house to play with her
Salaryman Kouta finds a young man sitting outside of his house in the cold. Kouta does his best to ignore him, but when the boy faints, Kouta takes him. Though Kouta expected him to leave, when he got back the next day, the strange boy was still in his house. The young man tells Kouta he'd like to show his gratitude by paying him back with his body. After giving in, Kouta ends up letting the boy, now named Kuro, stay with him and Kouta can't help comparing Kuro to a cat.
After 7 years, Kokoro's finally returned to his former boarding school. On the first night, Kokoro sneaks out past curfew to find Chanko, a stray cat that lives in the area. Instead of the reunion he's hoped for, Kokoro gets caught by Hiragi, school nurse and dorm supervisor. With his plan to see Chanko ruined, Kokoro's opinion of Hiragi starts off horrible. However, after Hiragi saves Kokoro from being assaulted, Kokoro feelings about Hiragi change, since he realizes Hiragi was his first love.
Wagamama Wanko no Shitsukekata