Convenient Semi-Friend

• Name — Convenient Semi-Friend • Ja Kanji — 好都合セミフレンド • Ja Romaji — Kōtsugō Semi-Furendo • Genre — Yuri

• Type — manga • Author — Minori Chigusa • Publisher — Houbunsha • Imprint — Manga Time KR Comics • Magazine — Manga Time Kirara • First — May 9, 2023 • Volumes — 4 Convenient Semi-Friend is a Japanese four-panel manga series written and illustrated by Minori Chigusa. The series began serialization in Houbunsha's Manga Time Kirara magazine in May 2023. Four tankōbon volumes have been released as of April 2026.

The series follows Suuna Kuruma, a high school student who has just moved into a new dorm. Upon arriving at her new room, she discovers a girl, Ruka Hamanasu, flirting with another girl. Suuna is surprised to see this happen, to which Ruka claims that they were not going out. She claims the other girl was her sefure (セフレ), which she says is short for "semi-friend". As Suuna has no other friends, Ruka offers to be her semi-friend.

• Suuna Kuruma • A high school student and Ruka's roommate. She has a very shy personality and thus had been unable to make any friends prior to meeting Ruka. She is conscious of her name as its kanji is hard to read. • Ruka Hamanasu • Suuna's roommate, whom she saw flirting with another girl during their first meeting. She claims the other girl is her sefure, but as Suuna is unfamiliar with the term, she claims it is short for "semi-friend". She has a gyaru personality.

The series is written and illustrated by Minori Chigusa. It was originally released as a guest series in Houbunsha's Manga Time Kirara magazine, before beginning serialization in May 2023. The first tankōbon volume was released on December 26, 2023. To commemorate the volume's release, selected Gamers outlets featured a pop-up section selling series merchandise. In December 2024, Yen Press announced that they had licensed the series for English publication.