KAZE HIKARU GN VOL 22

Now that Sei has been transferred to the third troop under his command,Saito grows increasingly suspicious of Sei's true identity. He is visited bydreams of his old friend, Sei's brother, Yuma. The memories of Yuma's wordsgradually grow more vivid, and Saito finally realizes Sei's secret. Feeling hemust protect her, Saito confronts Soji with an ultimatum: expose Sei to Hijitakaand have her dismissed from the troop, or allow Saito to take her as hisbride.