the favoritism really pisses me off
Maybe the brother really DONT have amnesia, he is just the type of dere where he is sadistic to the one he loves? and now he is using the amnesia card to actually genuinely be affectionate and not look like a hypocritical ass and to keep his somewhat pride safe.
I also speculate that he DID try to kill the little brother, he planned on doing a double suicide, but life happened and he now plays the amnesia card instead.
thank you for the upload