"Dazai..." (y/n) slowed down in comparison to the detective beside her, her hand slipping from his grip.

Dazai, surprised from the sudden change and lost of warmth from his hand, turned to the girl. She was looking at the ground, her hair casting a shadow over her eyes.

Dazai might not see how she looked like, but he knew something was wrong. "(y/n)-chan? What's the matter?" He went up to the girl, holding her chin in his hand. He gently lifted up the girl's face, their eyes meeting.

(y/n) looked away, unable to say what was on her mind. Small tears pricked at the corners of her eyes. Dazai saw how the tears sparkled in the sunset's rays and hugged (y/n), her face snuggled in the warmth of the detective's chest.

"Is it about today? I'm really sorry that we had to miss our date. I'm sorry that we had to go on that mission only for it to end up as a wild goose chase." Dazai held (y/n) tighter, nuzzling his nose against her soft hair.

"You know what? Why don't we go out tomorrow! I promise that it'll be even better than what we've planned out today! We'll have the whole day to ourselves and no one can disturb us. How would you like that, (y/n)-chan?" Dazai pulled away slightly, just enough for the girl to peek her head out and give him a nod, agreeing with the plan.

(y/n) placed her hands against Dazai's cheeks, slowly lifting her face up close to his. Their lips met in a gentle kiss, melting away the cold that the winter breeze brought along with it.

"Yeah, I'd love that." The girl smiled at the man in front of her. Their fingers interlocked with one another as they made their way back to the apartment they shared together.

———

Dazai woke up the next day, finding the space beside him on the bed was cold and empty.

"(y/n)-chan?" the man rubbed the sleep from his eyes and lazily stood up from the bed, in search for his lover.

He went to check the kitchen, bathroom, living room, and even the guest bedroom they had. (y/n) was nowhere to be found inside the apartment.

"(y/n)-chan? Are we playing hide and seek? Come out, come out wherever you are~" Dazai was trying to ease himself, thinking this was all a game that his girlfriend had set up.

Dazai's mind was running a thousand miles per hour thinking of what might have happened to (y/n). He reached out for his phone and immediately went to see if she had sent him a message or left a call. There was none.

Dazai grew worried every minute that passed by. His hands started to get clammy, unused with not feeling (y/n)'s warmth in the morning.

He texted the other agency workers to see if they had seen her at the office only to end up with the same response from everyone, no.

The man searched the apartment high and low, looking to see if (y/n) had left a note or something that might tell him of her whereabouts.

Between the pages of the phonebook, a small envelope with a heart on it slipped out, falling onto the floor. Dazai picked up the piece of paper and carefully opened it.

"Dazai Osamu, if you're reading this note, I would like to say sorry. I'm sorry for all the pain that I've caused you and will be causing you. I just can't do it anymore. This life is killing me. Every time I see you, I just get so mad. I get mad at myself. I'm not worth it Dazai. I'm dying. I can't help but to imagine how devastated you would be if I pass. I can't believe I let myself fall for you when I know I'll just end up hurting you in the end. Please do not blame yourself for this, love. No matter what, don't ever think that this is your fault. I love you, to the moon and back. I know that you love me just as much. You've been nothing but the sweetest boyfriend to me. You've shown nothing but pure endearment and love for me. Thank you. I love you too much to let you go through the pain that my death may bring. So, I've decided to leave. Please don't look for me Dazai, I'm afraid you won't be able to find me if you do. I've used my ability on myself. If I were to stay with you, the pain will just be worst, it would be better for me to go now. Remember, no matter what , we are together. Maybe not physically, but still, together. I love you, always and forever."

There, at the end of the letter, was her name.

The letter was now stained with tears, dripping from Dazai's eyes. On that faithful day, (y/n) was gone, and so was Dazai.