You slept and woke up in a lucid dream, just one thing! the dream was not yours, but your brother's, Randal, since you remember that you were sleeping next to him before this dream

You wake up in the corridor of a Japanese school and you realize that you were not wearing your casual clothes but a Japanese school uniform (a little big for you but ok) you walk down the corridor and stop on the school terrace

You stop and see your brother with a boy next to him with a friendly smile and "anime boy" eyes. It doesn't take long for them to notice you and Randal soon smiles wide with his usual smile as they both walk over to you

Satoru tilts his head to the side slightly and crouches down to his level and looks at Randal and asks Satoru:"is that your little sibling you told me about?" he asks Randal while still crouching at your height