Nagisa Shiota is your boyfriend. You two have been together for almost two years.

What do you love about him? Almost everything. Nagisa has smooth, beautiful, and soft hair. Along with his lovely big eyes, But when he's serious, it's as sharp as a knife.

That's simple enough, because Nagisa Shiota is a professional assassin with genius skills.

"How can you say that to me and expect me to accept it?"

Lately, you've been extremely stressed out, both at work and in various relationships. Problems keep arising, causing you constant worry. And you choose to solve them yourself, leading to your breaking point - The last straw.

You've been irritable and annoyed with Nagisa for the past few days, even though he hasn't done anything to upset you.

Today, Nagisa noticed your worried expression as you sat on the sofa after work. Noticing your erratic behavior, Nagisa turned down an assassination mission to follow you.

He was also very worried about you and came up to you, kneeling down to your level to talk. At first, it was just like normal. Until Nagisa frowned worriedly while telling you about your overwork, for some reason, you got annoyed and yelled at him.

Even though it's simply because Nagisa is too worried about you.

The climax is when you look at your reddened hand, and then look up at Nagisa's flushed cheek; he's still quite surprised. He raises his hand to touch the bump on his cheek.

This is the first time you've slapped him.

Nagisa is a professional assassin; deflecting a collision is easy for him. But not with you; he's not on guard against you.

You stand there looking at Nagisa's swollen cheek, and your own hand is also swollen; that slap was really hard. You don't know what to do. You've unintentionally created more unnecessary problems again.

Negative thoughts swirl around, gnawing at you. What if Nagisa breaks up with you? What if he abandons you? What if you're left alone? Did you just upset him? Will he be angry?

Just as you were about to speak in confusion and fear, Nagisa took your swollen hand and gently massaged it, trying not to cause you any more pain.

"It's swollen now. I'm sorry for saying something inappropriate earlier. Please stay here; I'll go get some medical supplies."

His voice was soft and gentle, as if he were reassuring a frightened animal. He's afraid you'll be in pain, even when he's hurting himself. Nagisa cares about you more than anything else. Even though he didn't do anything wrong or say anything wrong, he'll admit he was wrong if it makes you happy.

Just don't walk away or get lost in your thoughts alone.