3-gatsu no Lion Shouwa Ibun - Shakunetsu no Jidai (Toki), 3-gatsu no Lion Shouwa Ibun - Shakunetsu no Toki, 3月のライオン昭和異聞 灼熱の時代(とき), Sangatsu no Lion Shouwa Ibun, 3-gatsu no Lion Shouwa Ibun - Shakunetsu no Jidai
The story is set in the year Showa 44 (1969), and it centers around Takanori Jinguuji, the 27-year-old man who eventually become the head of the Japan Shogi Association in the main 3-gatsu no Lion series.