Hatsukoi Doshi (初恋同士, hatsukoi doushi, roughly translated as First loves) is a 47-page long one-shot romantic comedy manga by Yoichi Takahashi focused on the Japanese sport of kendo. This comic was originally published in Shueisha shonen magazine Fresh Jump in its second issue, the October issue of 1982, cover date #1982-10-01. Besides its original publication in magazine, Hatsukoi Doshi has been compiled in the tankobon 100m Jumper: Yomikiri Kessakushu (1986) and 100m Jumper: Takahashi Yoichi Kessakushu (2014).