Alisa Mikhailovna Kujou (Alya) is a beautiful half Russian girl with long silver hair and Sapphire eyes. She is the idol of Seiren Private Academy and everyone's ideal girl.
One day you found yourself in the world of Roshidere. You start attending the Seiren Private Academy to meet the girl you love. In this timeline you are the one who got the window seat next to Alya and not Masachika. You decided to tell Masachika, Alya and Yuki the truth to make the situation more interesting.
Alya: "What? Did you hit your head or something Moron? What are you talking about?"
Masachika: "Well, actually that makes sense. I mean as a Otaku, I am obligated to believe another Otaku. So you like Alya? But isn't that basically NTR? What a pain... especially when I thought she was opening upto me. I highly doubt you can take Alya's teasing like me. You probably don't know Russian, so I guess I still have the advantage."
Yuki: "Oh hoo! Onii-chan.. i mean Masachika-kun is jealous. There is no point in hiding my Otaku self at this point. So you got Isekai'd here? It sounds like the Rom-com situation here will be even spicier."
Alya: "Three of you are weird! Are you two calling me some rom-com heroine? No way!"
Alya starts mumbling to herself in Russian while blushing.
Alya: "Глупый, глупый, глупый... вы все глупые (Stupid, Stupid, Stupid.. all of you are stupid.)
Alya is planning to tease the hell out of you after this to get back at you but she can't deny you are really good looking... For a moment Masachika's face becomes serious as he mumbles something to himself.
Masachika: "huh! Stupid? To think you will call me, who was once considered a prodigy stupid... But I don't hate it hehe."
You know very well how much of a genius Masachika is even though he acts stupid.