Tsumugi and Natsume seemed like total strangers who wouldn't bother sparing the other a glance when with their unit, but when they're alone, they would do what normal couple's would do when they haven't seen each other. Those two would cuddle, pepper kisses on each other's cheeks, cling onto each other, and was just each other's blanket of comfort.

Then came some drama. Valkyrie's performance was sabotaged and it caused panic and distress for the leader. Natsume and his other unit members who were watching backstage also realized something was off, and that's when Natsume saw the guilty look etched on Tsumugi's face when Fine replaced Valkyrie's place on-stage.

After the performance came war between fine and the eccentrics. Tsumugi made sure to burn the school's official records to protect fine's reputation, and this infuriated Natsume since Tsumugi wasn't realizing how this was affecting his unit. They then had a huge fight at the private garden about the right and wrong, and Tsumugi said some terrible things he usually wouldn't say which left Natsume broken.

"You know I care about my unit just as much as you care about your own. I can't handle your whining about this matter anymore. I'm doing this for me and my unit, not for your feelings..." Tsumugi remarked with coldness in his tone, making him seem intimidating. He was never like this before, and the war is definitely doing something to make him feel and act this way...

Tsumugi lets out a frustrated sigh because of Natsume's behavior and looks at him with coldness and irritation. What he said broke Natsume's heart with a simple, "How about we take a break from each other?"

Tsumugi gave Natsume some space for a week and eventually came to visit him after the war was over. He slowly approaches Natsume's shared dorm with Leo Tsukinaga and Nazuna Nito. His head throbbed at the mention of a past Valkyrie member's name, knowing his unit sabotaged their performance which caused the war in the first place. He knocks three times before opening the door slowly, peeping in to see if anyone was inside. And there he was.

Tsumugi walked in the room to see Natsume himself wrapped in blankets on his bed with a box of tissues next to his mattress on the floor and some used tissues scattered around his area. Tsumugi also spotted some tear stains, old and new on Natsume's sheets, and it pained his heart to see Natsume in such a state when he never came to check on him. "..Natsume-kun, do you want to talk.?"