My Ex-Girlfriend’s Sister Ran Away to My Room, and We Can’t Stop Making Mistakes. - Chapter 2: The Morning After.

The Morning After.

My head was pounding.

The rhythmic beep-beep-beep of the alarm by my pillow was relentless, grating against my nerves. Sunlight bled through the gaps in the curtains, stabbing at my eyes.

The headache felt like a hammer striking my skull. Empty cans were strewn about the bed like fallen soldiers. No matter how I looked at it, I’d definitely overdone it.

I glanced beside me. Mii was there, her breathing soft and rhythmic as she slept.

So, she really was here. It hadn’t been a dream.

We were both naked. I remembered exactly what I’d done. I could still hear her gasps—clear as day in the quiet of the morning.

The faint bloodstains on the sheets were proof enough. It was all very real.

She lay on her side, the delicate curve of her spine peeking out from a gap in the blanket.

“Mii. You alive?”

I gave her a little shake, and she let out a low, muffled groan.

“My head hurts…”

She shifted restlessly under the covers, eventually pulling the duvet back over her head.

“I feel sick.”

“You drank too much.”

“It was just… there.”

Every scrap of alcohol I’d had in the fridge was gone. Beer, wine—she’d raided the lot.

“I don’t want to hear about drinking too much from you, Saki-nii,” she muttered from inside her cocoon.

“Fair point.”

I pressed a hand to my throbbing temple.

To be honest, I’d needed the alcohol. I couldn’t have faced this situation sober. I never imagined I’d end up in a relationship like this with Mii. After that first time, we had just kept going, driven by a desperate, alcohol-fueled momentum.

Did I use protection? I couldn’t remember. I picked up the condom box from the floor and gave it a shake. It was empty.

“It’s fine. I’ve been on the pill lately,” she said languidly, still lying there.

I wasn’t sure if I was the one being looked after or if she was just being pragmatic. I brushed my teeth and pulled on a fresh shirt. As I grabbed my bag to head out, she spoke up.

“Are you going somewhere?”

“Work.”

“Hey… you’re going to let me stay, right?”

I looked back to see her sitting up, clutching the blanket to her bare chest to hide her nakedness. Her eyes, still clouded with the remnants of the booze, were fixed on me with a heavy intensity.

“I’ll think about it.”

“Thanks.”

“It’d help if you could bag up the empty cans while I’m gone.”

“Okay. I’ll make the place sparkle.”

With that, she ducked back under the blanket and lay down again.

“Have a good day.”

Her voice trailed after me as I stepped out the door.

I looked up to find a cloudless blue sky stretching out overhead. It was a beautiful day—infuriatingly so.