"First published in Japan in 2002 by Shueisha Inc., Tokyo"--Colophon.

Kippei has a lot to figure out, like what to make for Yuzuyu's lunch and how to drop her off at kindergarten while still getting to high school on time. Kippei is enjoying his time with Yuzuyu, but not everyone is happy about it. The girls at school miss their quality time with Kippei, and one decides to play dirty to get him back. -- VIZ Media

Aishiteruze Baby is a sh'jo series that revolves around the life of Kippei Katakura, a popular high-school playboy who suddenly finds himself the surrogate parent of his 5-year-old cousin, Yuzuyu Sakashita, when her mother disappears. Kippei has a lot to figure out, like what to make for Yuzuyu's lunch and how to drop her off at kindergarten while still getting to high school on time. Kippei is enjoying his time with Yuzuyu, but not everyone is happy about it. The girls at school miss their quality time with Kippei, and one decides to play dirty to get him back.

Aishiteruze Baby is a shojo series that revolves around the life of Kippei Katakura, a popular high-school playboy who suddenly finds himself the surrogate parent of his 5-year-old cousin, Yuzuyu Sakashita, when her mother disappears. Kippei has a lot to figure out, like what to make for Yuzuyu's lunch and how to drop her off at kindergarten while still getting to high school on time. Kippei is enjoying his time with Yuzuyu, but not everyone is happy about it. The girls at school miss their quality time with Kippei, and one decides to play dirty to get him back.

Kippei finds a photo of Yuzuyu's mother in the wastebasket. When Kippei shows the photo to Yuzuyu, asking her if she threw the picture of her mother away, Yuzuyu doesn't remember. In fact, Yuzuyu doesn't even know who the woman is--she can't remember her mother at all! -- VIZ Media

Yuzuyu has a new classmate, Aya, whose older sister takes care of her just like Kippei takes care of Yuzuyu. Unfortunately, Aya and Yuzu overhear Aya's sister complain to Kippei about having to take care of a small child. Kippei starts spending time with Aya and her sister to help out, but Kippei's girlfriend Kokoro is the one who needs Kippei the most... -- VIZ Media

Young Takuya has it tough. After his mother passed away it has been his job to take care of his baby brother, Minoru while their father, Harumi, works the long hours of a Japanese salary-man. Takuya must sacrifice the playtime usually associated with childhood for the responsibilities of an adult. Cooking, cleaning, sewing and scolding are all now an integral part of the young boy's life.