January

Jan. 4, 2021 ~ Jan. 10, 2021
Jan. 11, 2021 ~ Jan. 17, 2021
Jan. 18, 2021 ~ Jan. 24, 2021
Jan. 25, 2021 ~ Jan. 31, 2021

March

Mar. 1, 2021 ~ Mar. 7, 2021
Mar. 8, 2021 ~ Mar. 14, 2021
Mar. 15, 2021 ~ Mar. 21, 2021
Mar. 22, 2021 ~ Mar. 28, 2021
Mar. 29, 2021 ~ Apr. 4, 2021

February

Feb. 1, 2021 ~ Feb. 7, 2021
Feb. 8, 2021 ~ Feb. 14, 2021
Feb. 15, 2021 ~ Feb. 21, 2021
Feb. 22, 2021 ~ Feb. 28, 2021

April

Apr. 5, 2021 ~ Apr. 11, 2021
Apr. 12, 2021 ~ Apr. 18, 2021
Apr. 19, 2021 ~ Apr. 25, 2021
Apr. 26, 2021 ~ May 2, 2021

May

May 3, 2021 ~ May 9, 2021
May 10, 2021 ~ May 16, 2021
May 17, 2021 ~ May 23, 2021
Half-Year Light Novel Sales Ranking 2021
May 24, 2021 ~ May 30, 2021
May 31, 2021 ~ June 6, 2021

June

Jun. 7, 2021 ~ Jun. 13, 2021
Jun. 14, 2021 ~ Jun. 20, 2021
Jun. 21, 2021 ~ Jun. 27, 2021
Jun. 28, 2021 ~ Jul. 4, 2021

July

Jul. 5, 2021 ~ Jul. 11, 2021
Jul. 12, 2021 ~ Jul. 18, 2021
Jul. 19, 2021 ~ Jul. 25, 2021
Jul. 26, 2021 ~ Aug. 1, 2021

August

Aug. 2, 2021 ~ Aug. 8, 2021
Aug. 9, 2021 ~ Aug. 15, 2021
Aug. 16, 2021 ~ Aug. 22, 2021
Aug. 23, 2021 ~ Aug. 29, 2021
Aug. 30, 2021 ~ Sep. 5, 2021

September

Sep. 6, 2021 ~ Sep. 12, 2021
Sep. 13, 2021 ~ Sep. 19, 2021
Sep. 20, 2021 ~ Sep. 26, 2021
Sep. 27, 2021 ~ Oct. 3, 2021

October

Oct. 4, 2021 ~ Oct. 10, 2021
Oct. 11, 2021 ~ Oct. 17, 2021
Oct. 18, 2021 ~ Oct. 24, 2021
Oct. 25, 2021 ~ Oct. 31, 2021

November

Nov. 1, 2021 ~ Nov. 7, 2021
Nov. 8, 2021 ~ Nov. 14, 2021
Nov. 15, 2021 ~ Nov. 21, 2021
Oricon’s Yearly Light Novel Sales Ranking 2021
Nov. 22, 2021 ~ Nov. 28, 2021
Nov. 29, 2021 ~ Dec. 5, 2021

December

Dec. 6, 2021 ~ Dec. 12, 2021
Dec. 13, 2021 ~ Dec. 19, 2021
Dec. 20, 2021 ~ Dec. 26, 2021
Dec. 27, 2021 ~ Jan. 2, 2022

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Note that all sales are for titles or releases that made onto the Oricon Light Novel, Bunko and Bungei-sho sales charts.