Later at home, Len finds that Rin is already there, and quickly noticed the changes on her.

"So, you're going for a new look with that hair color? and those eye contacts are cute too." Len complimented, making Rin (now Rui), blush a bit.

'It's Onii-Chan! What should I say to him right now, Mayu?' Rui said mentally.

'Flirt him, seductively.' Mayu's voice said inside Rui's head.

'Are you serious? He's my brother!'

'He's a person too, right? And also, aren't you in love with him?'

Rui had to admit, Her past self did have feelings on her own twin brother. He is so kind and dreamy that it made her unable to sleep one night.

Rui grinned darkly, which makes Len giving her a concerned look.

"Why are you grinning like that?"

"Oh, nothing~ Oh and Onii-Chan... I want to tell you that I love you! Do you love me?"

"Of course I love you too Rin."

"No, not like that, like lovers!"

"Wha- Really? But you can't, We're siblings!"

With that Rui then ran off to her bedroom. Len felt bad and frowned in regret.

He then knocked the door of Rin's room and said "I'm sorry I got you upset, Rin. But we're siblings, there's no way we can love each other like that." As he heard her muffled crying inside. Len then left to his own room to study maths.

However, little did he knew that Rui is not crying. She is laughing maniacally, unable to accept the fact that Len rejected her.

'There is something off with Rin since this morning. I wonder if she's OK...' Len thought to himself as he read his math book.

-To Be continued