All I have

TOH

Hyperventilation system, so called excess breath. Due to excess breathing, too much carbon dioxide was exhaled, Throwing off the carbon dioxide in your lungs. The carbon dioxide in your bloodstream declines and inclines a fit. 

When Kanagawa explained what happened, Toh immediately recalled a few situations in the past where Sumire ended up like that. Toh asked Sumire if she remembered, and the girl's silence was enough to confirm. 

'I want to sing. Right now,all I have is singing. Yuhi and I can't see each other right now, that's why this is all I have now.' 

He should be relieved that they don't spend as much time together anymore. 'But, I can't. The other reason I came here was because I was worried about her. I saw how badly being apart from one another has affected Terashima. If Terashima is acting the way he is, then she is probably in the same state.'