The anime "Chi. - About the Movement of the Earth" will have a free marathon on ABEMA on March 15th and 16th, coinciding with the broadcast of the final episode (25). Episodes 1-24 will be streamed, and episode 25 will be available on March 15th. All episodes will be free for one week. A giveaway for the deluxe edition manga is also happening, requiring followers to engage on X (formerly Twitter) with specific hashtags.
Source: natalie.mu