Koikimo is a oNA (web) anime that premiered in spring 2021, produced by Nomad.

About the production: the story comes from a manga, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are comedy, romance and slice of life, with themes such as Age Gap, Female Protagonist, Heterosexual and Male Protagonist.

On AniList, Koikimo has an average score of 68%, a good score, and appears on 67,283 users' lists.

One rainy day, salaryman Amakusa Ryou is saved by a high school girl he doesn't know at the station. He later finds out that the girl is Arima Ichika. Ryou is somewhat of a womanizer and to repay her for saving him, he suggests giving her a kiss or going out on a date with her, in which Ichika tells him he's creepy. This, however, opens a new door for Ryou and he falls madly in love with her. Ever since then, Ryou tries to overly express his feelings to Ichika. Ichika just keeps insulting him and says he's being creepy, but he just seems to take it as her way of showing affection towards him... (Source: Crunchyroll) Note: The show streamed in advance on Amazon Prime Video on March 29, 2021. Regular broadcast started on April 5, 2021.

Official synopsis from AniList.