When it was revealed in May, 1615, that Shojo had provided shelter to Sanraku KANO after the fall of Osaka-jo Castle and Shojo was thereby severely interrogated by the TOKUGAWA regime, Shojo asserted that Sanraku was an eshi (painter) but not a bushi (warrior), thus being freed safely.
慶長20年（1615年）5月大坂城落城後、狩野山楽を匿っていたことで徳川方の厳しい詮索を受けたが、昭乗は「山楽は絵師であって武士にあらず」と言い張り、事なきを得る。