The third series I Hear the Sunspot: Four Seasons (Hidamari ga Kikoeru: Shunkashuutou) launched in 2021.
It received a sequel series I Hear the Sunspot: Limit (Hidamari ga Kikoeru: Limit) from 2017-2020.
Printemps Publishing released the one-volume manga in October 2014, and released a sequel volume titled I Hear the Sunspot: Theory of Happiness (Hidamari ga Kikoeru: Kōfuku-ron) in May 2016.
I Hear the Sunspot is Fumino’s debut work, and it launched in Printemps Shuppan’s Canna magazine in 2013.